[Specimen details]

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Highlands Co. : S of Jackson Creek, ca. 6.2 mi. NW of Lake Placid. T36S, R29E, Sec. 8, NE¼ of SE¼.. 27° 21' 32" N 81° 26' 6" W
Habitat Recently burned, open flatwoods.
Reproductive State Flower
Specimen Notes
Collector K. R. DeLaney
Collection Date 15 Dec 1998
Accession Number 250146
Image 250146.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Highlands Co. : South of Lake Placid.
Description Frequent for 6 or 8 mi.
Habitat Along disturbed shoulder of highway.
Reproductive State Bud Flower Fruit
Specimen Notes
Collector G. R. Cooley 1249
Collection Date 09 Apr 1952
Accession Number 4403
Image 4403.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Miami-Dade Co. : N of Miami on 7th Avenue. 25° 46' 27" N 80° 11' 37" W
Habitat Low pineland or wet meadow.
Reproductive State Fruit
Specimen Notes
Collector B. Ledin 1693
Collection Date 12 Jul 1947
Accession Number 4402
Image 4402.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Citrus Co. : 12 mi. N of Brooksville. 28° 33' 19" N 82° 23' 16" W
Habitat Loose sands of longleaf pine [Pinus palustris] - turkey oak [Quercus laevis] hills.
Reproductive State Fruit
Specimen Notes
Collector R. Kral 6631
with M. Kral
Collection Date 05 Jun 1958
Accession Number 5253
Image 5253.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Hillsborough Co. : E side of University of South Florida campus. 28° 0' 0" N 82° 0' 0" W
Description 0.15 m tall; occasional.
Habitat Pinelands.
Reproductive State Fruit
Specimen Notes
Collector J. Gregory 61
Collection Date 10 Nov 1977
Accession Number 132575
Image 132575.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Pasco Co. : 5 mi. S of FL 54 along Seven Springs Avenue.
Habitat Disturbed area; sandy soil.
Reproductive State Fruit Bud
Specimen Notes
Collector C. G. Willett 126
Collection Date 26 Nov 1977
Accession Number 131574
Image 131574.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Orange Co. : Off FL 545 at Lake Maika'I campground, ca. 8 mi. W of Lake Buena Vista. 29° 22' 0" N 83° 1' 60" W
Description Common.
Habitat Along trail behind campground.
Reproductive State Flower
Specimen Notes
Collector L. J. Davenport 1852
Collection Date 13 May 1980
Accession Number 152009
Image 152009.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Marion Co. : Just S of Romeo. 29° 11' 60" N 82° 25' 60" W
Habitat Pine woods.
Reproductive State Flower
Specimen Notes
Collector D. S. Correll 51704
with H.B. Correll
Collection Date 26 Apr 1981
Accession Number 156154
Image 156154.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Volusia Co. : West Halifax Avenue (Maytown Road), 3.9 mi. from junction with US 1 (Oak Hill). T19S, R34E, SW corner of John Low Grant. 28° 48' 0" N 80° 57' 0" W
Habitat Sand pine [Pinus clausa] scrub.
Reproductive State Flower
Specimen Notes
Collector G. Robinson 152
with B.F. Hansen
Collection Date 20 May 1981
Accession Number 156632
Image 156632.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Pinellas Co. : Honeymoon Island, mid-island road. T28S, R15E, Sec. 5.
Habitat Roadside sand.
Reproductive State Bud
Specimen Notes
Collector G. Fleming 3356
Collection Date 28 Apr 1980
Accession Number 149296
Image 149296.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Collier Co. : Vanderbilt Beach, off US 41.
Habitat Pine scrub.
Reproductive State Fruit
Specimen Notes
Collector R. P. Wunderlin 5178
with T.F. Wunderlin
Collection Date 17 Nov 1973
Accession Number 110067
Image 110067.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Sarasota Co. : Venice Municipal Fishing Pier. T39S, R18E, Sec. 24, SW¼ of NW¼. 27° 5' 59" N 82° 27' 15" W
Habitat Grassy area; edge of coastal strand and pine woods.
Reproductive State Bud
Specimen Notes
Collector R. P. Sauleda 3369
Collection Date 20 Mar 1980
Accession Number 155146
Image 155146.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pinellas Co. : Near end of Bolesta Road.
Description Ca. 4 dm tall.
Habitat Disturbed area in full sun.
Reproductive State Flower Fruit
Specimen Notes
Collector D. R. Jones 7
Collection Date 18 May 1974
Accession Number 111067
Image 111067.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : N of FL 581, ca. 0.5 mi. from junction with FL 582A.
Habitat Ruderal.
Reproductive State Flower
Specimen Notes
Collector S. Hardee 22
Collection Date 23 May 1974
Accession Number 111436
Image 111436.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Sep 2001
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Sarasota Co. : Myakka River State Park. Foxes Low Road, near Florida Trail head. 27° 16' 32" N 82° 15' 58" W
Description Herb with erect or reclining stems; common.
Habitat Disturbed area along road in sandy soil.
Reproductive State Bud Fruit
Elevation 5 to 10 m
Specimen Notes
Collector B. K. Holst 4982
with F. Barrington, P. Garton, A. Quagliata
Collection Date 19 Jun 1995
Accession Number 230079
Image 230079.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Citrus Co. : Withlacoochee State Forest. Just E of section line road, ca. 1.4 mi. S of Fivemile Pond, ca. 3.5 air mi. S of FL 44, ca. 10 air mi. E of Homosassa Springs. T19S, R19E, Sec. 27, SW¼. 28° 48' 17" N 82° 24' 9" W
Habitat Mature burned longleaf pine [Pinus palustris] sandhill savanna. Soils - Lakeland (Typic Quartzipsamments).
Reproductive State Fruit
Elevation 100 to 130 ft
Specimen Notes
Collector S. L. Orzell 19748
with E.L. Bridges
Collection Date 29 Jun 1992
Accession Number 229445
Image 229445.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: R. A. Hattaway,
Locality USA. Florida , Citrus Co. : Fort Cooper State Park. N part of park. T19S, R20E, Sec. 28 NW¼ of NE¼.
Habitat Sandhill.
Reproductive State Flower
Specimen Notes
Collector R. A. Hattaway
Collection Date 12 May 2000
Accession Number 235404
Image 235404.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Seminole Co. : SW of the town of Chuluota; along Red Embers Road between Scrub Oak Trail and Old Lockwood Road. 28° 37' 28" N 81° 10' 18" W
Habitat Roadside.
Reproductive State Bud Flower Fruit
Specimen Notes
Collector W. D. Longbottom 11128
with D.H. Williams
Collection Date 30 Apr 2008
Accession Number 249361
Image 249361.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hernando Co. : Weeki Wachee. Near lake.
Habitat Sandy.
Reproductive State Bud Flower Fruit
Specimen Notes
Collector G. Fleming 765
with P. Genelle
Collection Date 13 May 1971
Accession Number 95763
Image 95763.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: J. E. Poppleton, 04-May-1973
Locality USA. Florida , Brevard Co. : North Merritt Island; S of Wisconsin Village Road Grid. T21S, R36E, Sec. 27 NW¼.
Habitat Pine flatwoods. Area burned in August 1972.
Reproductive State Fruit
Specimen Notes
Collector A.G. Shuey
Collection Date 04 May 1973
Accession Number 118903
Image 118903.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Monroe Co. : Big Pine Key. Along Key Deer Boulevard.
Description Stems conspicuously winged; under side of leaves wooly-pubescent.
Habitat Cleared areas.
Reproductive State
Specimen Notes
Collector W. C. Brumbach 9549
Collection Date 26 Mar 1980
Accession Number 150696
Image 150696.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Okeechobee Co. : Along FL 68, 0.7 mi. W of the St. Lucie County line; 7.2 mi. E of the junction with US 441. T35S, R36E, Sec. 12, NE¼ of NW¼.
Habitat Roadside ditch.
Reproductive State Flower
Specimen Notes
Collector B. F. Hansen 7242
with R. Sauleda, D. Richardson
Collection Date 29 May 1980
Accession Number 149135
Image 149135.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Volusia Co. : 0.3 mi. W of I-95 on FL 40; ca. 3.5 mi. W of New Smyrna Beach, under powerline. T17S, R33E, Sec. 21, SE¼ of NE¼. 30° 35' 60" N 85° 40' 41" W
Habitat Pine flatwoods along road.
Reproductive State Bud
Specimen Notes
Collector D. Richardson 760
Collection Date 28 Apr 1979
Accession Number 140136
Image 140136.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Hillsborough Co. : Along FL 581, ca. 5 mi. N of Tampa. 27° 56' 51" N 82° 27' 30" W
Description 25 cm tall; common.
Habitat Roadside.
Reproductive State Fertile
Specimen Notes
Collector R. Rose 130
Collection Date 06 Oct 1977
Accession Number 132731
Image 132731.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Volusia Co. : Along FL 40, 0.8 mi. W of I-95; ca. 4 mi. W of New Smyrna Beach. T17S, R33E, Sec. 21, SW¼ of NE¼. 30° 35' 60" N 85° 40' 41" W
Habitat Pine flatwoods along road.
Reproductive State Flower
Specimen Notes
Collector B. F. Hansen 5610
with D. Richardson
Collection Date 18 May 1979
Accession Number 140999
Image 140999.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Clay Co. : 1.6 mi. E of Penney Farms on FL 16. T6S, R25E, Sec. 12, SW¼ of SW¼.
Habitat Open roadside ditch along both sides of highway, in pine flatwoods.
Reproductive State Flower Bud
Specimen Notes
Collector B. F. Hansen 5496
with D. Richardson
Collection Date 18 May 1979
Accession Number 140741
Image 140741.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1978
Locality USA. Florida , Sarasota Co. : FL 72, 1 mi. W of junction with Bee Ridge Road.
Description To 90 cm; common.
Habitat Roadside.
Reproductive State Bud
Elevation 7 to 10 m
Specimen Notes
Collector C. H. Dodson 4486
Collection Date 26 Jun 1976
Accession Number 138995
Image 138995.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Charlotte Co. : Along C-775 and FL 45A, 0.5 mi. W of El Jobean, near Myakka River. 27° 28' 60" N 82° 2' 60" W
Description Frequent.
Habitat Mixed palmetto [Serenoa repens] scrub.
Reproductive State Fruit
Specimen Notes
Collector A. Fulton 60
Collection Date 27 Oct 1977
Accession Number 138332
Image 138332.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon pycnostachyum (Michx.) Elliott
Pterocaulon virgatum (L.) DC. - Determined By: Crewz, Aug 1978
Locality USA. Florida , Manatee Co. : Ca. 0.5 mi. E of Gill Road and 2.75 mi. N of Duette. T33S, R22E, Sec. 9, NE part. 27° 34' 60" N 82° 7' 0" W
Description Occasional, more abundant in surrounding flatwoods.
Habitat Extreme outer edge of small, herb-dominated, flatwoods marsh.
Reproductive State Flower
Specimen Notes
Collector A.G. Shuey 2082
Collection Date 18 May 1978
Accession Number 132284
Image 132284.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Miami-Dade Co. : South Miami. 25° 46' 27" N 80° 11' 37" W
Reproductive State Immature Fruit Flower
Specimen Notes
Collector C. P. Sreemadhavan 5061
Collection Date 10 Jul 1971
Accession Number 133350
Image 133350.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Highlands Co. : Highlands Hammock State Park. Burn zone H-54 SW, near seepage slope. T35S, R28E, Sec. 4, NW¼ of NE¼ of NW¼ of SE¼ of SE¼. 27° 22' 0" N 81° 20' 60" W
Habitat Ruderal area; mesic flatwoods.
Reproductive State Fruit Bud
Specimen Notes
Collector S. Cole
Collection Date 08 Jun 1994
Accession Number 211844
Image 211844.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Sarasota Co. : Churchill Ranch on Border Road, part of Deer Prairie Creek Preserve, ca. 2.3 km ENE of the junction of I-75 and C-777 (River Road). T39S, R20E, Sec. 5. 27° 7' 3" N 82° 19' 40" W
Habitat Flatwoods.
Reproductive State Flower
Specimen Notes
Collector A. R. Franck 118
Collection Date 09 May 2007
Accession Number 245457
Image 245457.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Alachua Co. : W side of FL 325, ca. 3.4 mi. N of junction C-346, ca. 1.6 mi. S of the junction with FL 20 at a point ca. 10 mi. E of downtown Gainesville. T10S, R21E, Sec. 34, E½ of NE¼ of SE¼. 29° 34' 32" N 82° 11' 22" W
Habitat Roadside seepage slope through mesic flatwoods.
Reproductive State Flower
Elevation 95 to 105 ft
Specimen Notes
Collector S. L. Orzell 13206
with E.L. Bridges
Collection Date 27 Apr 1990
Accession Number 229603
Image 229603.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Collier Co. : Ca. 1.4 air mi. SW of Miller Boulevard bridge over I-75 in south Golden Gate, ca. 6.5 air mi. NE of the junction of Rattlesnake Hammock Road and FL 951, ca. 12.5 air mi. E of Naples. T50S, R27E, Sec. 11, SE¼ of NW¼. 26° 7' 60" N 81° 34' 45" W
Habitat Mesic pine - palmetto [Serenoa repens] flatwoods on sandy limestone soil. Soils - Hallandale and Boca (Lithic Psammaquents).
Reproductive State Fruit
Elevation 12 to ft
Specimen Notes
Collector S. L. Orzell 19661
with E.L. Bridges
Collection Date 16 Jun 1992
Accession Number 229220
Image 229220.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Charlotte Co. : Don Pedro Island State Recreation Area. Land Base, south side of flatwoods. T42S, R20E, Sec. 3. 28° 58' 0" N 82° 7' 0" W
Habitat Pine flatwoods.
Reproductive State Bud
Specimen Notes
Collector S.W. Braem
Collection Date 20 Mar 2000
Accession Number 232466
Image 232466.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Clay Co. : Jennings [State] Forest - Black Creek Wildlife Management Area. Ca. 1 air mi. S of the the Duval County line, ca. 0.7 air mi. W of Yellow Water Creek, ca. 8.1 air mi. NW of Middleburg. T4S, R24E, Sec. 6, SE¼ of SE¼ of SE¼ of SE¼. 30° 10' 20" N 81° 55' 59" W
Habitat Dry to mesic longleaf pine [Pinus palustris] flatwoods - sandhill transition.
Reproductive State Fruit
Elevation 80 to 89 ft
Specimen Notes
Collector S. L. Orzell 20118
with E.L. Bridges
Collection Date 09 Jul 1992
Accession Number 229294
Image 229294.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Jefferson Co. : S side of I-10, ca. 1.2 mi. W of its junction with US 19, ca. 0.7 mi. E of C-259 bridge, ca. 7.3 mi. E of the junction with FL 59 to Lloyd. T1N, R4E, Sec. 22, NE¼ of NE¼. 30° 28' 0" N 84° 1' 0" W
Habitat Burned, partially cutover, upland longleaf pine [Pinus palustris] savanna. Soils - Dothan (Plinthic Paleudults).
Reproductive State Flower
Specimen Notes
Collector S. L. Orzell 13188
with E.L. Bridges
Collection Date 27 Apr 1990
Accession Number 229418
Image 229418.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Nassau Co. : St. Marys Conservation Area. Ca. 0.6 air mi. SW of Elbow Landing on St. Marys River, ca. 3.7 air mi. NE of Boulogne, ca. 10.5 air mi. N of downtown Hilliard. T5N, R24E, Sec. 32, SE¼. 30° 48' 36" N 81° 56' 0" W
Habitat Cutover xeric sandhill woodland - savanna. Soils - Ortega (Typic Quartzipsamments).
Reproductive State Flower
Elevation 70 to ft
Specimen Notes
Collector S. L. Orzell 19906
with E.L. Bridges
Collection Date 02 Jul 1992
Accession Number 229498
Image 229498.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Broward Co. : Dixie Highway, Pompano Beach area. 26° 13' 60" N 80° 7' 0" W
Description Common.
Habitat Pinus - Sabal scrub; open sand.
Reproductive State Flower
Specimen Notes
Collector O. K. Lakela 28305
Collection Date 21 Mar 1965
Accession Number 63880
Image 63880.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin,
Locality USA. Florida , Pasco Co. : Pasco Trails Ranch Development. 3 mi. E of US 41 on FL 52, N side. 28° 16' 60" N 82° 25' 0" W
Description Frequent.
Habitat Sandhill.
Reproductive State Bud
Specimen Notes
Collector W. Carey 35
Collection Date 11 Oct 1977
Accession Number 128773
Image 128773.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pinellas Co. : Brooker Creek Preserve. Ca. 4 mi. N of Oldsmar. T27S, R16E, Sec. 36, NW¼. 28° 2' 3" N 82° 39' 54" W
Habitat Wet pine - palmetto flatwoods along powerline.
Reproductive State Flower
Specimen Notes
Collector B. F. Hansen 12214
with R.P. Wunderlin, P. Dooris
Collection Date 12 May 1993
Accession Number 207746
Image 207746.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Hillsborough Co. : 1.5 mi. W of Plant City, 1.4 mi. S of FL574 on Airport Road, north side of runway.
Habitat Scrub association of Pinus clausa, Ceratiola [ericoides], Quercus spp.
Reproductive State Bud
Specimen Notes
Collector W. E. Wall 40
Collection Date 08 Mar 1963
Accession Number 88944
Image 88944.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Little Manatee River State Park. SE end of N. Hiking Trail. T32S, R20E, Sec. 30, NW¼ of NW¼. 27° 28' 60" N 82° 10' 60" W
Description Erect to 0.5 m.
Habitat Ruderal.
Reproductive State Bud
Specimen Notes
Collector J. Myers 4
with S. Marchesi
Collection Date 22 Apr 1998
Accession Number 230927
Image 230927.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Manatee Co. : Wingate Creek State Preserve. T35S, R22E, Sec. 7, NE¼ of SW¼ of NE¼.
Description Erect to 70 cm tall; common.
Habitat Mesic flatwoods.
Reproductive State Flower
Specimen Notes
Collector C. Becker
Collection Date 08 May 1997
Accession Number 229196
Image 229196.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Hillsborough Co. : University of South Florida Ecological Research Area. 28° 0' 0" N 82° 0' 0" W
Habitat Sandy area along road.
Reproductive State Fruit Bud
Specimen Notes
Collector P. Jourdan
with D.W. Crewz
Collection Date 25 Jun 1977
Accession Number 128424
Image 128424.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Collier Co. : Collier-Seminole State Park. Burn zone 7. T51S, R27E, Sec. 27. 26° 7' 60" N 81° 28' 60" W
Description To 70 cm tall; occasional.
Habitat Wet flatwoods.
Reproductive State Fruit Flower
Specimen Notes
Collector J. Weber
Collection Date 27 Mar 1992
Accession Number 206213
Image 206213.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Lee Co. : North Fort Myers, Tamiami Village, powerline N of Clubhouse. 25° 45' 31" N 80° 23' 54" W
Reproductive State Bud
Specimen Notes
Collector E. Brown
Collection Date 10 Jun 1985
Accession Number 187051
Image 187051.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Highlands Co. : Avon Park Air Force Bombing Range; junction of Ellis Grade and Van Eeghen Grade. T33S, R30E, Sec. 23. 30° 55' 0" N 85° 13' 60" W
Habitat Small, dry field between road and pine plantation.
Reproductive State Bud
Specimen Notes
Collector D. R. Lindsey 312
with S. Upchurch
Collection Date 04 Apr 1981
Accession Number 168576
Image 168576.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Santa Rosa Co. : Broxson Bend, NE of FL 87. T1N, R27W, Sec. 25, SW¼. 30° 34' 0" N 86° 55' 0" W
Habitat Pineland.
Reproductive State Bud Fruit
Specimen Notes
Collector G. Wilhelm 7177
Collection Date 11 Jun 1980
Accession Number 151049
Image 151049.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pinellas Co. : Caladesi Island.
Habitat Pineland dominated by Pinus elliottii, Sabal palmetto, Juniperus silicicola [virginiana], Serenoa repens.
Reproductive State Fruit
Specimen Notes
Collector L. Fowler 25
Collection Date 30 Jun 1973
Accession Number 112658
Image 112658.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Manatee Co. : FL 64, 22 mi. E of Bradenton. 27° 29' 56" N 82° 34' 29" W
Habitat Moist roadside.
Reproductive State Bud
Specimen Notes
Collector G. Fleming 2017
with P. Genelle
Collection Date 13 Apr 1975
Accession Number 119894
Image 119894.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Sumter Co. : Dade Battlefield Historic State Park. T21S, R22E, Sec. 20. 28° 37' 60" N 82° 9' 0" W
Habitat Flatwoods.
Reproductive State Fruit
Specimen Notes
Collector A. Bishop
with K. Alvarez
Collection Date 25 Jun 2004
Accession Number 248434
Image 248434.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Seminole Co. : NE of Chuluota at the end of Twisting River Lane, E of Snow Hill Road, N of Econlockhatchee River. 28° 40' 38" N 81° 6' 4" W
Reproductive State Flower Bud
Specimen Notes
Collector W. D. Longbottom 5097
with D.H. Williams
Collection Date 20 Apr 2002
Accession Number 247195
Image 247195.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Brevard Co. : Wickham Park. 28° 9' 40" N 80° 39' 34" W
Description Erect to 1.5 ft.
Habitat Edge of pine flatwoods.
Reproductive State Flower Bud
Specimen Notes
Collector J. E. Tear 2108
with T. MacClendon
Collection Date 27 Mar 2002
Accession Number 231909
Image 231909.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Citrus Co. : Chassahowitzka 28° 41' 60" N 82° 34' 0" W
Habitat Open field at roadside.
Reproductive State Flower
Specimen Notes
Collector G. Fleming 1243
with P. Genelle
Collection Date 30 Apr 1972
Accession Number 101056
Image 101056.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Pinellas Co. : NW of Clearwater Sewage Treatment Plant. 27° 57' 54" N 82° 54' 40" W
Habitat Open trail along creek bank.
Reproductive State Bud
Specimen Notes
Collector G. Fleming 4010
Collection Date 17 Apr 1988
Accession Number 196049
Image 196049.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Flagler Co. : Palm Coast. 28° 0' 19" N 82° 27' 3" W
Reproductive State Flower
Specimen Notes
Collector D. Tabb
Collection Date 12 Jun 1978
Accession Number 183137
Image 183137.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Citrus Co. : Crystal River, US 19 and FL 494.
Reproductive State Bud
Specimen Notes
Collector M. E. Schmid
Collection Date 24 Apr 1984
Accession Number 181897
Image 181897.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Gnaphalium purpureum L.
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Hendry Co. : 3 mi. W of the junction of FL 80 and FL 29 on FL 80, area bulldozed for construction.
Habitat Sandy area with many palm trees.
Reproductive State Bud Flower
Specimen Notes
Collector LeDoux 301
with Pries
Collection Date 05 Jan 1973
Accession Number 116160
Image 116160.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Monroe Co. : Big Pine Key.
Habitat Flat, low pineland with Eugenia, Smilax, Cirsium, Solidago, Coreopsis.
Reproductive State Fruit
Specimen Notes
Collector O. K. Lakela 27900
Collection Date 13 Nov 1964
Accession Number 61709
Image 61709.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Collier Co. : Off FL 82, W of Immokalee. 26° 25' 10" N 81° 25' 13" W
Habitat With Trilisa [Carphephorus], Sabatia; white sand palmetto [Serenoa repens] scrub.
Reproductive State Flower
Specimen Notes
Collector O. K. Lakela 27403
Collection Date 25 Sep 1964
Accession Number 61625
Image 61625.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr - Determined By: Leonard,
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Broward Co. : Dania Reservation. 26° 3' 0" N 80° 7' 60" W
Reproductive State Bud
Specimen Notes
Collector W. C. Sturtevant 101
Collection Date 30 Apr 1959
Accession Number 82087
Image 82087.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Palm Beach Co. : Both sides of Old Okeechobee Road around the bend from the Shrine Club, West Palm Beach. 27° 14' 38" N 80° 49' 47" W
Habitat Waste land, disturbed ground; sand; full sun.
Reproductive State Fruit
Specimen Notes
Collector P. M. Cassen 153
Collection Date 24 Aug 1967
Accession Number 81228
Image 81228.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Leon Co. : Vicinity of Tallahassee. 30° 26' 18" N 84° 16' 51" W
Reproductive State Fruit
Specimen Notes
Collector D. Laker
Collection Date 14 Jul 1966
Accession Number 89191
Image 89191.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Baker Co. : Along C-127, 0.8 mi. S of C-120; ca. 5 mi. S of Baxter. T1S, R21E, Sec. 5, NW¼ of NE¼. 30° 30' 0" N 82° 13' 60" W
Habitat Roadside ditch in recently logged pine flatwoods.
Reproductive State Fruit
Specimen Notes
Collector B. F. Hansen 10080
with G. Robinson
Collection Date 11 Jul 1984
Accession Number 180644
Image 180644.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Marion Co. : Ca. 0.1 mi. E of BM 52, S of Tishler Pond. T14S, R24E, Sec. 34.
Description To 5 dm tall; locally abundant.
Habitat Young slash pine [Pinus elliottii] - turkey oak [Quercus laevis] woods.
Reproductive State Fruit
Specimen Notes
Collector S. T. Cooper 545
with D.L. Martin
Collection Date 09 May 1975
Accession Number 122883
Image 122883.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hernando Co. : Withlacoochee State Forest. 28° 21' 0" N 81° 49' 0" W
Habitat Sandy pinelands, Pinus elliottii.
Reproductive State Flower
Specimen Notes
Collector G. Fleming 1799
with P. Genelle
Collection Date 05 May 1973
Accession Number 104803
Image 104803.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Union Co. : Along C-231A, 0.8 mi. W of C-231; ca. 5 mi. NW of Lake Butler. T5S, R19E, Sec. 2, NE¼ of SE¼. 30° 46' 60" N 84° 55' 60" W
Habitat Weedy roadside in recently logged pine flatwoods.
Reproductive State Bud Fruit
Specimen Notes
Collector B. F. Hansen 10280
with G. Robinson
Collection Date 12 Jul 1984
Accession Number 180577
Image 180577.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Polk Co. : Avon Park Air Force Bombing Range; ca. 20 m WSW of Frostproof Road, 0.25 mi. S of north gate. T32S, R29E, Sec. 4. 27° 44' 45" N 81° 31' 50" W
Habitat Pine flatwoods.
Reproductive State Flower
Specimen Notes
Collector D. R. Lindsey 463
with S. Upchurch
Collection Date 08 May 1981
Accession Number 168690
Image 168690.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, 1990
Determination History
Pterocaulon virgatum (L.) DC. - Determined By: Durako, M. & Gross, R. H.,
Pterocaulon virgatum (L.) DC. - Determined By: W. F. Grey, 02 Apr 1979
Locality USA. Florida , Palm Beach Co. : 1 mi. W of turnpike off Forest Hill Boulevard.
Habitat Pine flatwoods.
Reproductive State Fruit
Specimen Notes
Collector M. Durako 12
Collection Date 03 Mar 1972
Accession Number 201055
Image 201055.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Monroe Co. : Big Pine Key, ca. 2 mi. from W end of island off US 1.
Description Perennial to 3–4 dm tall; disk florets greenish-white.
Habitat Pinelands with large stands of Thrinax microcarpa [T. morrisii] and Coccothrinax argentata over limestone soil.
Reproductive State Flower
Specimen Notes
Collector F. Almeda 1919
with O. Lakela
Collection Date 09 Jun 1973
Accession Number 105460
Image 105460.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Brevard Co. : North Merritt Island. T21S, R36E.
Habitat Pine flatwoods, moist soil among wiregrass [Aristida stricta var. beyrichiana] and palmetto [Serenoa repens] in treeless flatwoods.
Reproductive State Fruit
Specimen Notes
Collector A.G. Shuey
Collection Date 21 Jul 1972
Accession Number 123782
Image 123782.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin,
Locality USA. Florida , Polk Co. : 1 year old mined phosphate site.
Reproductive State Fertile
Specimen Notes
Collector J. Brown
Collection Date 05 Jun 1976
Accession Number 130758
Image 130758.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Hillsborough Co. : Lake Park.
Habitat Pine and palmetto [Serenoa repens] area.
Reproductive State Flower
Specimen Notes
Collector S. Mortellaro 94
Collection Date 16 Jul 1976
Accession Number 131317
Image 131317.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Osceola Co. : W side of main road leading S through Poinciana, ca. 0.75 mi. S of US 17 and US 92. 28° 10' 0" N 81° 25' 0" W
Habitat Herb-dominated pineland swale.
Reproductive State Flower
Specimen Notes
Collector R. P. Wunderlin 5770
with A.G. Shuey
Collection Date 25 Jun 1977
Accession Number 130689
Image 130689.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pasco Co. : Werner-Boyce Salt Springs State Park. Along nature trail to salt springs. T25S, R16E, Sec. 20, SE¼.
Habitat Mesic flatwoods.
Reproductive State Immature Fruit
Specimen Notes
Collector C. vanHoek
with S. Petty
Collection Date 20 Jun 2002
Accession Number 233801
Image 233801.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: L. A. Lathrop,
Locality USA. Florida , Brevard Co. : Fox Lake Farms. 28° 34' 56" N 80° 51' 27" W
Description Common.
Habitat Disturbed wet scrub; sandy soil.
Reproductive State Fruit
Specimen Notes
Collector L. A. Lathrop 128
Collection Date 07 Jul 2003
Accession Number 236705
Image 236705.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Calhoun Co. : White Pond; N of Bear Head Road. 30° 33' 3" N 85° 13' 39" W
Description Disk florets whitish; erect to 30 cm; locally occasional.
Habitat Recently burned, upland deciduous forest.
Reproductive State Bud Fruit
Specimen Notes
Collector T. MacClendon 470
with K. MacClendon, L.C. Anderson
Collection Date 05 Jun 2006
Accession Number 242823
Image 242823.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Osceola Co. : E of St. Cloud, along FL 532, vicinity of powerline right-of-way, W of junction with FL 419l 28° 16' 29" N 80° 58' 47" W
Habitat Roadside.
Reproductive State Bud
Specimen Notes
Collector W. D. Longbottom 4849
with D.H. Williams, H.L. Williams
Collection Date 07 May 2000
Accession Number 243293
Image 243293.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Putnam Co. : SW of Palatka, along FL 19, ca. 1 mi. S of Cross Florida Barge Canal, at Caravelle Ranch Road, W side of road. 29° 38' 55" N 81° 38' 15" W
Habitat Ditch.
Reproductive State Flower
Specimen Notes
Collector W. D. Longbottom 11312
with D.H. Williams
Collection Date 03 May 2008
Accession Number 249238
Image 249238.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Pinellas Co. : US 19, 1 mi. N of FL 588.
Habitat Open meadow.
Reproductive State Bud
Specimen Notes
Collector G. Fleming 2874
with P. Genelle
Collection Date 18 Jun 1977
Accession Number 130005
Image 130005.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Sarasota Co. : Little Salt Spring peat bog, within North Port. T39S, R21E, Sec. 20, NW¼.
Reproductive State Fruit
Specimen Notes
Collector J. Brown 503
with T. Arcuri
Collection Date 07 Jun 1977
Accession Number 129966
Image 129966.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Charlotte Co. : Prairie/Shell Creek (Southwest Florida Water Management District property), ca. 7 km NE of the junction of I-75 and US 17, ca. 12 km NE of Punta Gorda. T40S, R23E, Sec. 24, NW¼. 28° 0' 0" N 82° 0' 0" W
Habitat Powerline right-of-way.
Reproductive State Flower
Specimen Notes
Collector A. R. Franck 1266
Collection Date 21 May 2009
Accession Number 249412
Image 249412.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Osceola Co. : E of St. Cloud, along FL 532, vicinity of New Eden. 28° 16' 31" N 81° 5' 18" W
Description Scattered.
Habitat Roadside.
Reproductive State Flower
Specimen Notes
Collector W. D. Longbottom 4829
with D.H. Williams, H.L. Williams
Collection Date 07 May 2000
Accession Number 243340
Image 243340.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Pinellas Co. : Dunedin Hammock, Dunedin. 28° 1' 11" N 82° 46' 18" W
Habitat White sand area.
Reproductive State Bud
Specimen Notes
Collector G. Fleming 2734
with P. Genelle
Collection Date 01 May 1977
Accession Number 127916
Image 127916.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Osceola Co. : Along C-534, 4.0 mi. W of junction with US 441 and US 192; 0.5 mi. NW of Brick Lake. T26S, R31E, Sec. 34, NW¼ of SW¼.
Habitat Pine flatwoods along canal.
Reproductive State Fruit
Specimen Notes
Collector B. F. Hansen 8620
with G. Robinson
Collection Date 14 Aug 1981
Accession Number 156858
Image 156858.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Orange Co. : Moss Park, W shore of Lake Mary Jane. T24S, R31E, Sec. 23, SE¼ of SW¼.
Habitat Sandy, open disturbed lake shore grading into Typha marsh.
Reproductive State Flower
Specimen Notes
Collector B. F. Hansen 8744
with D. Lindsey
Collection Date 25 Aug 1981
Accession Number 157329
Image 157329.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Sarasota Co. : Oscar Scherer State Park. Burn zone 6B south.
Description To 2 ft tall; occasional.
Habitat Mesic flatwoods.
Reproductive State Flower
Specimen Notes
Collector A. Peters
Collection Date 10 Apr 1991
Accession Number 202394
Image 202394.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Pinellas Co. : Moccasin Lake Park. 2750 Park Trail Lane, Clearwater; Magnolia Trail. 27° 57' 54" N 82° 54' 40" W
Habitat Open area in pinelands.
Reproductive State
Specimen Notes
Collector G. Fleming 3550
Collection Date 29 Apr 1983
Accession Number 170950
Image 170950.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr - Determined By: D. B. Ward,
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Hamilton Co. : 1 mi. W of Westlake along FL 6. T1N, R12E, Sec. 17. 26° 45' 30" N 80° 18' 26" W
Description Infrequent.
Habitat Dry sand at edge of turkey oak [Quercus laevis] woods.
Reproductive State Fruit
Specimen Notes
Collector D. B. Ward 1433
with S.S. Ward
Collection Date 14 Jun 1959
Accession Number 44954
Image 44954.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr - Determined By: E. West,
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Bradford Co. : W side of US 301, 2.2 mi. N of Starke. T6N, R22E, Sec. 3. 29° 56' 39" N 82° 6' 35" W
Description Frequent.
Habitat Moist open pine stand.
Reproductive State Bud
Specimen Notes
Collector D. B. Ward 1360
with S.S. Ward, E. West
Collection Date 15 May 1959
Accession Number 44944
Image 44944.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr - Determined By: D. B. Ward,
Pterocaulon virgatum (L.) DC. - Determined By: Wunderlin, 1976
Locality USA. Florida , Hardee Co. : Peace River, N of FL 64, W side of Zolfo Springs. T34S, R25E, Sec. 21, SE¼. 27° 55' 0" N 81° 49' 0" W
Description Infrequent.
Habitat Dry sand bank.
Reproductive State Bud
Specimen Notes
Collector BTY [Botany] 421
Collection Date 14 Apr 1961
Accession Number 44965
Image 44965.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, 1990
Determination History
Pterocaulon pycnostachyum (Michx.) Elliott
Pterocaulon virgatum (L.) DC. - Determined By: Crewz, 08 Apr 1980
Locality USA. Florida , Hillsborough Co. : FL 574, E of US 301, N of highway.
Habitat Oak - saw palmetto [Serenoa repens] sand scrub.
Reproductive State Bud Fruit
Specimen Notes
Collector J.M. Carlton
Collection Date 28 Jun 1977
Accession Number 201016
Image 201016.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Lee Co. : Pine Island; FL 867, 1 mi. S of its junction with FL 78 at Pine Island Center. T44S, R22E, Sec. 33, SW¼ of NE¼.
Habitat Pine flatwoods with Pinus elliottii, Myrica cerifera, Lyonia fruticosa, Bejaria racemosa, and Serenoa repens.
Reproductive State Bud
Specimen Notes
Collector B. F. Hansen 5418
with T. Cochrane, B. Cochrane
Collection Date 20 Apr 1979
Accession Number 143840
Image 143840.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , DeSoto Co. : 7 mi. on C-761 from FL 72.
Habitat Scrub - palmetto [Serenoa repens].
Reproductive State Fruit
Specimen Notes
Collector A. Fulton 194
Collection Date 16 Oct 1978
Accession Number 143639
Image 143639.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Sep 2001
Determination History
Pterocaulon virgatum (L.) DC. - Determined By: B. K. Holst,
Locality USA. Florida , Sarasota Co. : Indianola Property, N of Osprey, W of US 41, between South Holiday Drive and Springfield Drive. 27° 14' 4" N 82° 30' 19" W
Habitat Coastal scrub in open pineland area.
Reproductive State Flower
Elevation 0 to 10 m
Specimen Notes
Collector M. E. Nolan 40
Collection Date 22 Apr 1997
Accession Number 230129
Image 230129.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, 1993
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Manatee Co. : South Fork State Park. T33S, R21E, Sec. 18.
Description Erect to 70 cm tall; common.
Habitat Xeric hammock.
Reproductive State Bud Flower
Specimen Notes
Collector R. Owens
Collection Date 16 May 1992
Accession Number 207815
Image 207815.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Flatwoods Park, 1.5 mi. WNW of Morris Bridge; ca. 7 mi. E of Lutz. T27S, R20E, Sec. 30, SW¼. 28° 9' 4" N 82° 27' 41" W
Habitat Pine flatwoods along edges of Lythrum marsh.
Reproductive State Flower
Specimen Notes
Collector R. P. Wunderlin 10638
Collection Date 22 Oct 1994
Accession Number 221267
Image 221267.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Highlands Co. : 0.5 mi. E of Hicoria on Old FL 17. T38S, R30E, Sec. 20, NW¼ of SW¼. 27° 8' 60" N 81° 20' 60" W
Habitat Wet prairie.
Reproductive State Flower Fruit
Specimen Notes
Collector B. F. Hansen 6116
with D. Richardson
Collection Date 26 Jul 1979
Accession Number 145216
Image 145216.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : On FL 574, E of US 301, N of highway.
Habitat Oak - saw palmetto [Serenoa repens] sand scrub.
Reproductive State Bud Fruit
Specimen Notes
Collector J.M. Carlton
Collection Date 28 Jun 1977
Accession Number 162554
Image 162554.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Miami-Dade Co. : Ned Glenn Pineland Preserve; SW 188th Street and 87th Avenue. 25° 35' 27" N 80° 20' 1" W
Description Uncommon.
Habitat Sand pockets in pine rockland.
Reproductive State Fruit
Specimen Notes
Collector K. A. Bradley 1725
Collection Date 21 May 1998
Accession Number 223308
Image 223308.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Balm-Boyette Tract, 2.9 mi. SSW of Boyette. T31S, R21E, Sec. 18, SE¼ of SE¼. 27° 49' 0" N 82° 13' 0" W
Reproductive State Bud Flower Fruit
Specimen Notes
Collector S. Landry
with C. Vandaveer
Collection Date 27 Jun 1995
Accession Number 225368
Image 225368.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Miami-Dade Co. : Nixon Smiley (Tamiami) Pineland Preserve. N side of SW 128th Street, E side of SW 137th Avenue, just E of Tamiami Airport. 25° 45' 31" N 80° 23' 54" W
Habitat Rock pineland of Miami oolite limestone with pockets of sand.
Reproductive State Fruit
Specimen Notes
Collector C. L. McCartney Jr. 62
Collection Date 25 May 1996
Accession Number 225834
Image 225834.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Sumter Co. : Along FL 44, 0.2 mi. SE of FL 44A, 2.5 mi. W of Wildwood. 28° 51' 55" N 82° 2' 20" W
Habitat Roadside, bordering dry oak forest.
Reproductive State Flower
Specimen Notes
Collector M. T. Strong 1908
Collection Date 03 Jun 1999
Accession Number 226005
Image 226005.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Marion Co. : FL 336, 0.8 mi. NW of junction with FL 40, ca. 5 mi. NW of Dunnellon. 29° 3' 15" N 82° 28' 14" W
Habitat Sandy roadside.
Reproductive State Immature Fruit
Specimen Notes
Collector M. T. Strong 1664
Collection Date 10 Aug 1998
Accession Number 226175
Image 226175.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Polk Co. : Avon Park Air Force Bombing Range; N side of Kissimmee Road, 0.5 mi. W of Old Bravo Road. T33S, R30E, Sec. 1. 28° 17' 28" N 81° 24' 25" W
Reproductive State Flower
Specimen Notes
Collector D. R. Lindsey 681
with S. Upchurch
Collection Date 29 May 1981
Accession Number 168090
Image 168090.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Sumter Co. : N side of FL 44, 1 mi. WNW of I-75. T18S, R22E, Sec. 33.
Habitat Badly disturbed sandhill.
Reproductive State Fruit
Specimen Notes
Collector R. P. Wunderlin 9658
with B.F. Hansen, G. Robinson
Collection Date 28 Jun 1984
Accession Number 179566
Image 179566.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Lake Co. : Mount Plymouth. 28° 40' 60" N 81° 31' 60" W
Habitat Oak forest.
Reproductive State Flower Fruit
Specimen Notes
Collector R. F. Daubenmire
with J. Daubenmire
Collection Date 09 May 1976
Accession Number 179790
Image 179790.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Citrus Co. : Crystal River, Golf View, 7 Rivers Golf Club. 26° 28' 60" N 80° 5' 60" W
Habitat Roadside, open pine - oak woods.
Reproductive State Bud Flower
Specimen Notes
Collector M. E. Schmid
Collection Date 21 Apr 1983
Accession Number 179846
Image 179846.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Volusia Co. : Under powerline, 0.3 mi. W of I-95 on FL 40; ca. 3.5 mi. W of New Smyrna Beach. T17S, R33E, Sec. 21, SE¼ of NE¼. 30° 35' 60" N 85° 40' 41" W
Habitat Pine flatwoods along road.
Reproductive State Bud Flower
Specimen Notes
Collector B. F. Hansen 5620
with D. Richardson
Collection Date 18 May 1979
Accession Number 140867
Image 140867.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Columbia Co. : Along FL 2, halfway between the Georgia state line and the Baker County line. T2N, R18E, Sec. 607[?], NE¼. 30° 46' 60" N 86° 40' 0" W
Habitat Roadside ditch in weedy, recently logged pine flatwoods, and around edges of small cypress [Taxodium] head.
Reproductive State Fruit
Specimen Notes
Collector B. F. Hansen 10151
with G. Robinson
Collection Date 11 Jul 1984
Accession Number 181030
Image 181030.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Leon Co. : Apalachicola National Forest. Near Silver Lake Road in northeastern part of Forest; W of Tallahassee. 29° 43' 32" N 84° 58' 60" W
Habitat Open, sandy woods with Quercus laevis.
Reproductive State Fruit
Specimen Notes
Collector A. Parker 1796
Collection Date 30 Oct 1983
Accession Number 178634
Image 178634.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Highlands Co. : Ca. 5 mi. S of Childs. 27° 11' 60" N 81° 19' 60" W
Habitat Escarpment of ancient sand dune area. Pinus clausa - Ceratiola scrub.
Reproductive State Flower Fruit
Specimen Notes
Collector J. D. Ray, Jr. 9786
with H. A. Gleason, R. J. Eaton
Collection Date 25 Apr 1960
Accession Number 20778
Image 20778.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Pasco Co. : 2.5 mi. N of Gowers Corner off US 41.
Description Frequent.
Habitat Wet roadside margin of small cypress [Taxodium] pond.
Reproductive State Flower
Specimen Notes
Collector J. D. Ray, Jr. 9919
with O. Lakela, J. Patman
Collection Date 09 Aug 1960
Accession Number 19568
Image 19568.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Seminole Co. : In pinelands near Slavia. 28° 37' 60" N 81° 13' 0" W
Description Leaves white beneath; flowers white.
Habitat Pinelands.
Reproductive State Bud Flower
Specimen Notes
Collector G. R. Cooley 7471
with R. J. Eaton, J. D. Ray, Jr.
Collection Date 02 May 1960
Accession Number 18963
Image 18963.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Manatee Co. : Lake Manatee State Recreation Area. T34S, R20E, E½ of NW¼ of SW¼ of NE¼ Sec. 31. 27° 30' 0" N 82° 16' 60" W
Description Erect to 75 cm; heads discoid, whitish, in expanded raceme; achene pappus of capillary bristles.
Habitat In ruderal area of picnic grounds.
Reproductive State Fruit
Specimen Notes
Collector S. Cole
Collection Date 15 Jun 1995
Accession Number 232528
Image 232528.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Charlotte Co. : Don Pedro State Recreation Area. Land Base, south side of Flatwoods. T42S, R20E, Sec. 3. 28° 58' 0" N 82° 7' 0" W
Habitat Pine flatwoods.
Reproductive State Flower Fruit
Specimen Notes
Collector S. W. Braem
Collection Date 20 Mar 2000
Accession Number 232686
Image 232686.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon pycnostachyum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Hillsborough Co. : SE of Tampa ca. 1 mi. N of the US 301 and FL 674 intersection. 27° 56' 51" N 82° 27' 30" W
Habitat Open grassy field; formerly saw palmetto [Serenoa repens] - longleaf pine [Pinus palustris] land; seasonally wet.
Reproductive State Flower Fruit
Specimen Notes
Collector J. D. Ray, Jr. 10086
with O. Lakela, J. Patman
Collection Date 24 Aug 1960
Accession Number 22579
Image 22579.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Sarasota Co. : W of Myakka River State Park along FL 72. 27° 18' 0" N 82° 16' 0" W
Description Frequent.
Habitat Flat pinelands and saw palmetto [Serenoa repens]. In dry soil.
Reproductive State Bud Flower
Specimen Notes
Collector O. K. Lakela 25848
with R. W. Long
Collection Date 23 Apr 1963
Accession Number 55082
Image 55082.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Volusia Co. : 29° 3' 48" N 81° 8' 55" W
Habitat Beside a sandy road.
Reproductive State Bud Flower
Specimen Notes
Collector B. Ames
Collection Date 24 Mar 1918
Accession Number 54293
Image 54293.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Pasco Co. : T25[S], R19E, Sec. 30.
Description Mostly in fruit.
Habitat Oak - pinewood with Serenoa repens, Vaccinium, Cephalanthus. In sandy openings.
Reproductive State Fruit
Specimen Notes
Collector O. K. Lakela 24275
with G. M. Riegler
Collection Date 16 Jun 1961
Accession Number 36754
Image 36754.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Highlands Co. : Avon Park Lake Estates. Altair Road near Xavier, 2.5 mi. WNW of Avon Park. T33S, R28E, Sec. 7.
Habitat Sand pine [Pinus clausa], oak, and rosemary [Ceratiola ericoides] scrub. Archbold and Satalite [Satellite] white sands. Associate voucher for Crotalaria recurvistylis Delaney and Wunderlin.
Reproductive State
Specimen Notes
Collector K. R. DeLaney 1714
Collection Date 25 May 1988
Accession Number 196950
Image 196950.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Highlands Co. : C-731 just off US 27.
Habitat Beside drainage ditch.
Reproductive State Bud Flower Fruit
Specimen Notes
Collector R. Metzger 202
Collection Date 29 Apr 1965
Accession Number 74464
Image 74464.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Lee Co. : Koreshan State Park. Homegrounds of Koreshan Unit on Estero Road, US 41. 26° 26' 17" N 81° 48' 24" W
Habitat Flat sandy pineland and palmetto [Serenoa repens] association with Bejaria, Lyonia spp., Ilex glabra, Vaccinium, and Myrica; sbout trails and fire lane marginal to grove and landscaped grounds of exotics.
Reproductive State Flower Fruit
Specimen Notes
Collector O. K. Lakela 26974
with F. C. Craighead, C. Craighead
Collection Date 20 Apr 1964
Accession Number 59651
Image 59651.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Hillsborough River State Park. Burn zone HR - 4; along Park Drive. T27S, R21E, Sec. 8 NW¼ of NE¼ of SW¼ of SE¼. 27° 55' 0" N 82° 20' 60" W
Description Erect to 50 cm in height; corollas whitish; heads in compact spikes; achene pappus of capillary bristles.
Habitat Mesic flatwoods.
Reproductive State Fruit
Specimen Notes
Collector K. Graham
Collection Date 13 Jul 1994
Accession Number 212801
Image 212801.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pinellas Co. : Caladesi Island State Park. Burn Zone CI - 5 NE, near maritime hammock. T28S, R15E, Sec. 29 SE¼ of SE¼ of NW¼.
Description Erect to 60 cm in height; heads greenish - white; in terminal spikes; achene pappus of capillary bristles.
Habitat Mesic flatwoods.
Reproductive State Bud Flower Fruit
Specimen Notes
Collector S. Cole
with J. Miller
Collection Date 08 Apr 1994
Accession Number 212642
Image 212642.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Santa Rosa Co. : Hurlburt Air Force Base. W side of the entrance road opposite the golf course. 26° 28' 60" N 80° 5' 60" W
Habitat Low woods.
Reproductive State Flower Fruit
Specimen Notes
Collector G. Wilhelm 10176
Collection Date 31 May 1982
Accession Number 169756
Image 169756.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon virgatum L.
Locality USA. Florida , Highlands Co. : Avon Park Bombing Range. 100 - 500 m NNW of the junction of Kissimmee Road and Old Bravo Road. T33S, R30E, Sec. 1. 28° 17' 28" N 81° 24' 25" W
Habitat Turkey oak [Quercus laevis] scrub.
Reproductive State Bud Fruit
Specimen Notes
Collector D. R. Lindsey 513
with S. Upchurch
Collection Date 15 May 1981
Accession Number 168764
Image 168764.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Collier Co. : Collier-Seminole State Park. Burn Zone 7. T51S, R27E, Sec. 27. 26° 7' 60" N 81° 28' 60" W
Description Forb up to 70 cm; occasional; whitish corollas, filiform, heads numerous, born in terminal spikes; wind - carried seeds.
Habitat Wet flatwoods.
Reproductive State Bud Flower
Specimen Notes
Collector J. Weber
Collection Date 27 Mar 1992
Accession Number 208812
Image 208812.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: Wunderlin, 1986
Determination History
Pterocaulon undulatum C. Mohr - Determined By: L. Pardue, 18-Feb-1968
Pterocaulon virgatum L. - Determined By: Wunderlin, 1976
Locality USA. Florida , Collier Co. : Land development E of Lake Trafford. 26° 12' 39" N 81° 48' 24" W
Habitat Roadside near shallow swamp.
Reproductive State Bud Flower Fruit
Specimen Notes
Collector R. W. Long 2759
with J. Utley, L. Pardue
Collection Date 18 Feb 1968
Accession Number 82283
Image 82283.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pinellas Co. : Brooker Creek Preserve. Ca. 5.5 mi. N of Oldsmar, ca. 1.5 mi. S of Tarpon Springs Road, W of powerline right-of-way, vicinity of Brooker Creek. T27S, R16E, Sec. 13, SE¼. 28° 2' 3" N 82° 39' 54" W
Habitat Grassy area near edge of Brooker Creek.
Reproductive State Bud
Specimen Notes
Collector R. P. Wunderlin 10435
with P. Dooris
Collection Date 04 May 1994
Accession Number 210372
Image 210372.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Lee Co. : Koreshan State Historic Site. Burn zone 3 W. T46S, R25E, Sec. 33, SW¼ of NW¼ of SE¼ of NE¼ of NW¼.
Description Erect, to 50 cm tall; common.
Habitat Ruderal area; mesic flatwoods.
Reproductive State Fruit Bud
Specimen Notes
Collector S. Cole
Collection Date 03 Jun 1994
Accession Number 232579
Image 232579.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Manatee Co. : Powel Crosley Estate, 8374 North Tamiami Trail, on Sarasota Bay directly E of Sarasota-Bradenton International Airport. 27° 23' 24" N 82° 33' 54" W
Description Shrub with a pendulous inflorescence or catkin with wind pollinated flowers [??].
Habitat Sandhill.
Reproductive State Fruit
Elevation 1 to 3 m
Specimen Notes
Collector K. Chavez 3
Collection Date 03 May 2000
Accession Number 250577
Image 250577.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Pasco Co. : Starkey Wilderness Park. 2.5 mi. NNW of Odessa. T26S, R17E, Sec. 4, SW¼ of SE¼. 28° 11' 38" N 82° 35' 30" W
Habitat Mesic flatwoods.
Reproductive State Fertile
Specimen Notes
Collector E. M. Ferguson 79
Collection Date 02 May 2003
Accession Number 251077
Image 251077.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Polk Co. : Avon Park Air Force Range. Ca. 0.2 mi. E of Hard Luck Road at a point 0.65 mi. S of Roberts Road. T32S, R31E, Sec. 36, SE¼ of NW¼ of SW¼. 28° 2' 13" N 82° 10' 7" W
Habitat Calcareous prairie ecotone.
Reproductive State Fertile
Specimen Notes
Collector C. vanHoek 913
with B. Wargo
Collection Date 25 Apr 1997
Accession Number 251841
Image 251841.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , DeSoto Co. : Deep Creek Preserve. W side of Peace River, ca. 8 km NE of Port Charlotte, ca. 4.5 km NE of the junction of I-75 and C-769. T39S, R23E, Sec. 33, NW¼. 26° 55' 0" N 81° 55' 0" W
Habitat Mesic flatwoods.
Reproductive State Fertile
Specimen Notes
Collector A. R. Franck 1525
Collection Date 23 Nov 2009
Accession Number 252257
Image 252257.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Highlands Co. : Lake June-in-Winter Scrub State Park. Bobcat Trail. T37S, R29E, Sec. 4, E½.
Habitat Flatwoods.
Reproductive State Fertile
Specimen Notes
Collector A. Bishop
Collection Date 22 Oct 2002
Accession Number 252336
Image 252336.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Highlands Co. : Avon Park Air Force Range. S of Kissimmee Road, ca. 1.2 mi. E of its junction with Ebersbach Road, on O.Q. Range. T33S, R30E, Sec. 8, SE¼ of NE¼ of NE¼. 28° 17' 28" N 81° 24' 25" W
Habitat Wet depression in burnde mesic prairie.
Reproductive State Fertile
Specimen Notes
Collector C. vanHoek 520
with B. Wargo
Collection Date 28 Apr 1996
Accession Number 252575
Image 252575.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Volusia Co. : Tomoka State Park. Johns Island; ca. 1 km E of the US 1 bridge at the Tomoka River, ca. 1 km NNE of the N terminus of Nova Road (C-5A) at US 1. 29° 18' 25" N 81° 4' 59" W
Description Herb.
Habitat Mesic flatwoods.
Reproductive State Fertile
Specimen Notes
Collector J. M. Kunzer 619
Collection Date 11 Aug 2004
Accession Number 253817
Image 253817.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Glades Co. : Fisheating Creek Wildlife Management Area. 90 m E of C-731, 2.2 km S of the Highlands County line. 27° 0' 48" N 81° 27' 18" W
Habitat Between baygall and flatwoods.
Reproductive State Fertile
Specimen Notes
Collector A. R. Franck 2059
Collection Date 08 May 2010
Accession Number 254181
Image 254181.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Glades Co. : Fisheating Creek Wildlife Management Area. 1.1 km E of US 27, 0.45 km N of Fisheating Creek. 26° 56' 19" N 81° 18' 19" W
Habitat Dry prairie.
Reproductive State Fertile
Specimen Notes
Collector A. R. Franck 2195
Collection Date 30 May 2010
Accession Number 254648
Image 254648.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: K. M. Meyer, 2007
Locality USA. Florida , Liberty Co. : Apalachicola National Forest. Apalachicola Ranger District; 2.4 mi. E of Forest Service Road 13, off of FL 65, near Twin Poles (hunt camp). 30° 8' 22" N 84° 55' 58" W
Description Perennial; stem white and green winged; flowers white, pubescent.
Habitat Pine forest.
Reproductive State Fertile
Elevation 22 to m
Specimen Notes
Collector K. M. Meyer 60
with A. Townesmith
Collection Date 09 May 2007
Accession Number 257267
Image 257267.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hardee Co. : Paynes Creek Historic State Park. Near fort site. T33S, R25E, Sec. 7, SW¼ of SW¼ of NW¼.
Habitat Scrub.
Reproductive State Fruit
Specimen Notes
Collector A. Bishop
with K. Alvarez
Collection Date 29 Jun 2004
Accession Number 260019
Image 260019.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Martin Co. : Jonathan Dickinson State Park. NW area.
Habitat Wet flatwoods.
Reproductive State Fruit
Specimen Notes
Collector R. O. Woodbury
with R. Roberts
Collection Date Jun 1988
Accession Number 260402
Image 260402.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: X. de Seguin des Hons,
Locality USA. Florida , Brevard Co. : South Lake Conservation Area, Mims. 410 ft. NW of the NW corner of the retention pond between Dairy Road and the Conservation Area. T21S, R34E, Sec. 25. 28° 39' 55" N 80° 50' 41" W
Habitat Scrubby flatwoods.
Reproductive State Fertile
Specimen Notes
Collector P. Schlueb
with X. de Seguin des Hons
Collection Date 12 May 2007
Accession Number 260924
Image 260924.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , St. Johns Co. : Dupont Center; along the N side of FL 206, between US 1/FL 5 (Dixie Highway) and I-95, W of the Florida East Coast Railroad tracks. 29° 45' 22" N 81° 29' 37" W
Habitat Cleared area along railroad.
Reproductive State Fruit
Specimen Notes
Collector W. D. Longbottom 16417
with D.H. Williams
Collection Date 29 Sep 2011
Accession Number 263514
Image 263514.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , St. Lucie Co. : I-95 rest area. 27° 27' 50" N 80° 25' 16" W
Habitat Cutover, disturbed pine flatwoods.
Reproductive State Fruit
Specimen Notes
Collector S. Myers 645
Collection Date 21 Jul 2012
Accession Number 264582
Image 264582.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Sumter Co. : ALong FL 44, E of Buena Vista Boulevard. 28° 50' 19" N 82° 0' 51" W
Habitat Roadside.
Reproductive State Fertile
Specimen Notes
Collector W. D. Longbottom 17134
with D.H. Williams
Collection Date 20 Apr 2012
Accession Number 265326
Image 265326.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Baker Co. : C-228 (Maxville-Macclenny Road), McPherson. 30° 13' 59" N 82° 4' 10" W
Habitat Roadside.
Reproductive State Fertile
Specimen Notes
Collector W. D. Longbottom 17057
with D.H. Williams
Collection Date 18 Apr 2012
Accession Number 265632
Image 265632.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Lower Green Swamp Preserve. Ca. 1.5 mi. NNW of the Knights Griffin Road bridge over Itchepackesassa Creek, ca. 3.5 mi. WSW of the junction of Deeson Road and C-35A. T27S, R22E, Sec. 35, E½. 28° 4' 0" N 82° 7' 60" W
Habitat Flatwoods restoration area.
Reproductive State Fertile
Specimen Notes
Collector R. Chicone 1072
Collection Date 20 Jun 2013
Accession Number 271480
Image 271480.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: A. R. Franck, 08-Jul-2014
Determination History
Pterocaulon virgatum (L.) DC.
Locality USA. Florida , Duval Co. : Between Ridge Boulevard and Ribault Drive.
Habitat Scrub oak forest; sandy soil.
Reproductive State Fertile
Specimen Notes From Eckerd College Herbarium.
Collector M. R. Blake
Collection Date 29 May 1975
Accession Number 274220
Image 274220.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Lake Co. : Rock Springs Run State Reserve. W side of the entrance road,c a. 0.75 mi. S of FL 46. 28° 48' 5" N 81° 27' 7" W
Habitat Sandhill system, with Pinus palustris, Aristida stricta, and other sandhhill herbs.
Reproductive State Fruit
Specimen Notes
Collector R. Mejeur 863
Collection Date 28 May 2001
Accession Number 275389
Image 275389.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Orange Co. : Tosohatchee Wildlife Management Area.
Reproductive State Fertile
Specimen Notes
Collector K. Richards 5
Collection Date 13 Jul 2013
Accession Number 275478
Image 275478.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hardee Co. : Paynes Creek Historic State Park. Ca. 2 km SE of Bowling Green. 27° 37' 0" N 81° 47' 60" W
Habitat Scrub.
Reproductive State Fruit
Specimen Notes
Collector P. J. Simoes 6
with A.R. Franck
Collection Date 23 May 2014
Accession Number 275821
Image 275821.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Orange Co. : Rock Springs Run State Reserve. E of Spear Scrub. 28° 46' 19" N 81° 26' 53" W
Habitat Pine flatwoods.
Reproductive State Fertile
Specimen Notes
Collector R. Mejeur 960
with G. Walker
Collection Date 08 Jun 2002
Accession Number 275940
Image 275940.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Lake Dan and Lake Frances Nature Preserve; 0.19 km S of the Pasco County line, 0.19 km E of teh Pinellas County line, 3.51 km N of FL 582, Odessa. 28° 10' 17" N 82° 38' 4" W
Habitat Wet flatwoods.
Reproductive State Fruit
Specimen Notes
Collector A. Farid 46
with A.R. Franck
Collection Date 01 Jul 2015
Accession Number 280432
Image 280432.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Nassau Co. : FL 200/A1A (Buccaneer Trail), E of its junction with I-95, along Mentoria Road. 30° 37' 9" N 81° 38' 42" W
Habitat Edge of woods along roadside.
Reproductive State Fertile
Specimen Notes
Collector W. D. Longbottom 24748
Collection Date 15 May 2016
Accession Number 286747
Image 286747.JPG
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Feb 2017
Determination History
Pterocaulon undulatum C. Mohr
Locality USA. Florida , Glades Co. : US 27.
Description Stems whinged, underside of wings white; underside of leaves white, midribs white; white tomentose in all parts except scattered hairy upper surface of leaves.
Habitat Pineland.
Reproductive State Fertile
Specimen Notes
Collector P. Silverstone
Collection Date 14 May 1964
Accession Number 289164
Image 289164.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Mar 2017
Determination History
Pterocaulon undulatum C. Mohr
Locality USA. Florida , Highlands Co. : W side of US 27, 10 mi. S of Sebring. 27° 29' 44" N 81° 26' 27" W
Description Stem 1-2 ft. long, winged; leaves oblong and narrow; flower head whitish, the flowers crowded in a thick spike 1-4 in. long.
Reproductive State Fertile
Specimen Notes
Collector R. E. Roberts
Collection Date May 1966
Accession Number 291973
Image 291973.JPG
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Apr 2017
Determination History
Pterocaulon undulatum (Walter) C. Mohr
Locality USA. Florida , Palm Beach Co. : US 27, 75 mi. N of Miami. 25° 46' 27" N 80° 11' 37" W
Description Low growing herb with thick black roots; stems wooly and winged; leaves alternate, undulate, hairy on undersides; flowers in clusters, green to white.
Habitat Roadside.
Reproductive State Fruit
Specimen Notes
Collector H. W. Severance
Collection Date 14 May 1964
Accession Number 292305
Image 292305.JPG
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, May 2017
Determination History
Pterocaulon undulatum C. Mohr
Locality USA. Florida , Highlands Co. : US 27 below Sebring. 27° 29' 44" N 81° 26' 27" W
Habitat Between drainage ditch and pineland.
Reproductive State Fertile
Specimen Notes
Collector J. L. Behler
Collection Date 07 May 1966
Accession Number 290980
Image 290980.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Gulf Co. : Along FL 22 at Kemp Cemetery Road. 30° 8' 41" N 85° 18' 5" W
Habitat Open pine woods.
Reproductive State Fertile
Specimen Notes
Collector W. D. Longbottom
with D.H. Williams
Collection Date 20 May 2016
Accession Number 293925
Image 293925.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Oct 2017
Determination History
Pterocaulon undulatum C. Mohr
Locality USA. Florida , Collier Co. : Marco Island, 10 mi. W of US 41 on FL 92. 25° 58' 0" N 81° 43' 0" W
Description Herb with four-sided stem; terminal head of flowers greenish white.
Habitat Area of acid sandy soil.
Reproductive State Fertile
Specimen Notes
Collector N. Woessner
Collection Date Mar 1964
Accession Number 295096
Image 295096.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Cypress Creek Preserve. 28° 7' 51" N 82° 23' 43" W
Habitat Flatwoods.
Reproductive State Fruit
Specimen Notes
Collector J. R. Campbell
with S. Dickman, A. Franck, S. Bowman
Collection Date 21 Jun 2016
Accession Number 296160
Image 296160.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: B. F. Hansen, Dec 2019
Determination History
Pterocaulon undulatum C. Mohr
Locality USA. Florida , Highlands Co. : 27° 20' 36" N 81° 20' 27" W
Description Stem and petiola widely winged; leaf undersides densely white wooly pubescent, the upper sides a dark green; flower heads white.
Reproductive State Fertile
Specimen Notes
Collector M. G. Ford
Collection Date May 1964
Accession Number 300619
Image 300619.JPG
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality USA. Florida , Hillsborough Co. : Blackwater Creek Nature Preserve. Patrinostro Road off FL 39, Plant City. 28° 8' 56" N 82° 9' 40" W
Habitat Edge of hiking trail in open savanna; pine flatwoods.
Reproductive State Fruit
Specimen Notes
Collector K. S. Alvarado
Collection Date 26 May 2020
Accession Number 300877
Image 300877.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott
Locality U.S.. Florida , Hillsborough Co. : Blackwater Creek Nature Preserve, Patrinostro Road off FL 39, Plant City. 28° 8' 56" N 82° 9' 40" W
Habitat Edge of hiking trail in open savanna, pine flatwods.
Reproductive State Fertile
Specimen Notes
Collector K. S. Alvarado
Collection Date 26 May 2020
Accession Number 302285
Image 302285.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: C. vanHoek, 2021
Locality USA. Florida , Henderson Co. : South Florida Methodist Youth Camp, FL 78.
Reproductive State Fertile
Specimen Notes
Collector C. F. Caudle
with M.L. Gilbert, M.S. Tisdale
Collection Date 27 May 1964
Accession Number 302352
Image 302352.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: C. vanHoek, 2021
Locality USA. Florida , Hardee Co. : FL 17, Buchanan.
Reproductive State Fertile
Specimen Notes
Collector C. F. Caudle
with M.L. Gilbert, M.S. Tisdale
Collection Date 27 May 1964
Accession Number 302351
Image 302351.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Elliott) Michx. - Determined By: C. vanHoek, 2018
Locality USA. Florida , Lafayette Co. : North Florida Methodist Youth Camp.
Reproductive State Fruit
Specimen Notes
Collector C. F. Caudle
with M. L. Gilbert, M. S. Tisdale
Collection Date 13 Jun 1964
Accession Number 303779
Image 303779.jpg
Plant Atlas Link Plant Atlas Citation

Pterocaulon pycnostachyum
Family Name Asteraceae
Currently Accepted Name Pterocaulon pycnostachyum (Michx.) Elliott - Determined By: D. S. Pennys, Apr 2002
Locality USA. Florida , Marion Co. : Ocala National Forest. Riverside Island; area NE of National Forest Road 88 and National Forest Road 75. 29° 25' 28" N 81° 48' 48" W
Description Common herb to 50 cm.
Habitat Longleaf pine [Pinus palustris] - wiregrass [Aristida] area.
Reproductive State Bud
Specimen Notes
Collector D. Penneys
Collection Date 13 Apr 2002
Accession Number 304448
Image 304448.jpg
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