[Specimen details]

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Kral,
Locality USA. Florida , Citrus Co. : 12 mi. N of Brooksville. 28° 33' 19" N 82° 23' 16" W
Description Ca. 2.5 m tall; rays ca. 4 cm; stems maroon, glaucescent.
Habitat Loose sands of longleaf pine [Pinus palustris] - turkey oak [Quercus laevis] hills.
Reproductive State Flower Bud
Collector R. Kral 6614
with Kral
Collection Date 05 Jun 1958
Accession Number 2689
Image 2689.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Kral,
Locality USA. Florida , Alachua Co. : W outskirts High Springs.
Description 2.5 m tall; stems terete, pale maroon, sub-glaucous.
Habitat Pine - turkey oak [Quercus laevis] barrens.
Reproductive State
Collector R. Kral 6571
Collection Date 24 May 1958
Accession Number 8542
Image 8542.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Kral,
Locality USA. Florida , Citrus Co. : 6 mi. SE of Dunnellon. 29° 3' 15" N 82° 28' 14" W
Description Stems maroon, slightly glaucous.
Habitat Longleaf pine [Pinus palustris] - turkey oak [Quercus laevis] sand ridge.
Reproductive State
Collector R. Kral 6896
Collection Date 16 Jun 1958
Accession Number 2432
Image 2432.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Kral,
Locality USA. Florida , Citrus Co. : 6 mi. SE of Dunnellon. 29° 3' 15" N 82° 28' 14" W
Description Stems maroon, slightly glaucous.
Habitat Longleaf pine [Pinus palustris] - turkey oak [Quercus laevis] sand ridge.
Reproductive State Flower Fruit
Collector R. Kral 6896
Collection Date 16 Jun 1958
Accession Number 2495
Image 2495.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Kral,
Locality USA. Florida , Alachua Co. : W outskirts High Springs.
Description 2.5 m tall; stems terete, pale maroon, sub-glaucous.
Habitat Pine - turkey oak [Quercus laevis] barrens.
Reproductive State Flower Bud
Collector R. Kral 6571
Collection Date 24 May 1958
Accession Number 8541
Image 8541.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Clay Co. : Ca. 7 mi. SW of Penny Farms, along FL 21, 1.2 mi. S of FL 16.
Habitat Edge of wet pine flatwoods.
Reproductive State Flower Bud
Collector R. P. Sauleda 5456
Collection Date 31 May 1981
Accession Number 157789
Image 157789.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Walton Co. : Along US 90, ca. 5 mi. W of De Funiak Springs.
Description Rays yellow.
Habitat Sandy soil of scrub oak area.
Reproductive State Flower Bud
Collector D. S. Correll 52149
with H.B. Correll
Collection Date 28 Jun 1981
Accession Number 160111
Image 160111.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: G. T. Crosby,
Locality USA. Florida , Alachua Co. : San Velasco Hammock, NW of Gainesville on FL 232. 29° 39' 5" N 82° 18' 38" W
Description Herb 1.5–2 m tall; flowers yellow.
Habitat Southern red oak [Quercus falcata] woods.
Reproductive State Flower Fruit
Collector G. T. Crosby 280
with W.G. D'Arcy
Collection Date 04 Jun 1966
Accession Number 77577
Image 77577.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Lakela,
Locality USA. Florida Oak Ridge near the Suwannee [River]. 30° 22' 60" N 82° 57' 0" W
Reproductive State Flower Bud
Collector J. K. Small
Collection Date May 1928
Accession Number 19171
Image 19171.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Clay Co. : Ca. 3.5 mi. ENE of junction of FL 100 and FL 21, ca. 0.25 mi. SSE of Silver Sands Lake (Ten Mile Pond), N side of Overlook Terrace, E of Silver Sands Lake Drive. T8S, R23E, Sec. 14, SW¼. 27° 55' 35" N 82° 30' 54" W
Description Robust, acaulescent herb; common.
Habitat Relatively undisturbed sandhill with interrupted (discontinued) fire cycle.
Reproductive State Flower Fruit
Collector J. M. Kunzer 709
Collection Date 08 Oct 2004
Accession Number 239685
Image 239685.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small
Locality USA. Florida , Citrus Co. : FL 494, ca. 0.25 mi. W of US 19.
Habitat Open field.
Reproductive State Flower Immature Fruit Bud
Collector G. Fleming 1268
with P. Genelle
Collection Date 07 May 1972
Accession Number 101053
Image 101053.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Walton Co. : Near Argyle. 30° 43' 11" N 86° 2' 40" W
Habitat Dry pine barrens.
Reproductive State Flower Bud
Collector A. H. Curtiss 5941
Collection Date 16 Jul 1897
Accession Number 209994
Image 209994.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small
Locality USA. Florida , Hernando Co. : Chinsegut Hill.
Description Ray flowers suprassing disc; involucre yellow; to 8 dm tall.
Habitat Dry, sandy soil; south-facing slope; with Berlandiera.
Reproductive State Fruit
Collector O. K. Lakela 24431
Collection Date 23 Jul 1961
Accession Number 38588
Image 38588.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small - Determined By: Lakela,
Locality USA. Florida , Putnam Co. : Georgetown on FL 390. 29° 22' 60" N 81° 37' 60" W
Habitat Roadside.
Reproductive State Fruit
Collector R. W. Long 1292
Collection Date 09 Nov 1964
Accession Number 61085
Image 61085.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Santa Rosa Co. : Along FL 87, ca. 1.5 mi. S of junction with FL 4, ca. 2.5 mi. SW of Berrydale. T4N, R28W, Sec. 4. 30° 52' 60" N 87° 0' 0" W
Habitat Recently clearcut (1999) area with Coreopsis major, Rhexia alifanus, Licania michauxii, Helenium amarum, and Erigeron strigosus; and with Pinus taeda and Quercus laevis.
Reproductive State Flower Bud
Collector D. Searcy
Collection Date 23 May 2000
Accession Number 225916
Image 225916.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Pasco Co. : W side of Little Road, 0.75 mi. S of Hudson Avenue. 28° 21' 52" N 82° 41' 36" W
Description Herb to 1 m; flowers yellow.
Habitat Sandhill.
Reproductive State Flower Immature Fruit
Collector M. W. Kenton
Collection Date 27 Sep 1994
Accession Number 214208
Image 214208.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Citrus Co. : Fort Cooper State Park. Inverness. T19S, R20E, Sec. 21, center of SE¼. 28° 50' 9" N 82° 19' 49" W
Reproductive State Flower Fruit
Collector N. L. Mawhinney 178
Collection Date 09 Jun 1983
Accession Number 172091
Image 172091.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small
Locality USA. Florida , Citrus Co. : Near Hernando; near western edge of Lake Tsala Apopka. 28° 53' 60" N 82° 22' 28" W
Description Rays yellow; disc greenish.
Habitat Dry hammock with live oak [Quercus virginiana], scattered pine, Magnolia.
Reproductive State Flower
Collector G. R. Cooley 8228
with C.E. Wood, Jr. et al.
Collection Date 02 May 1961
Accession Number 43119
Image 43119.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Hernando Co. : Southwest Florida Water Management District land. T23S, R19E, Sec. 19. 28° 0' 0" N 82° 0' 0" W
Habitat Under planted slash pine [Pinus elliottii] stand that had recently been thinned.
Reproductive State Flower
Collector T. F. Rochow
Collection Date 16 Jun 1983
Accession Number 171796
Image 171796.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small
Locality USA. Florida , Hernando Co. : Along US 41, 4 mi. N of Brooksville. 28° 33' 19" N 82° 23' 16" W
Description One plant seen.
Habitat Grassy roadside slope with open pine overstory and adjoining pasture.
Reproductive State Flower Fruit
Collector J. D. Ray, Jr. 9366
Collection Date 03 Sep 1959
Accession Number 16006
Image 16006.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1980
Determination History
Silphium ovatifolium (Torr. & A. Gray) Small
Locality USA. Florida , Hernando Co. : Along US 41, 4 mi. N of Brooksville. 28° 33' 19" N 82° 23' 16" W
Description One plant seen.
Habitat Grassy roadside slope with open pine overstory and adjoining pasture.
Reproductive State Bud
Collector J. D. Ray, Jr. 9366
Collection Date 03 Sep 1959
Accession Number 15932
Image 15932.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Hernando Co. : Along W side of US 41, 1.5 mi. S of junction with C-476.
Reproductive State Flower Bud
Collector R. P. Sauleda
Collection Date 12 Nov 1979
Accession Number 157211
Image 157211.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Gulf Co. : Just E of unnamed timber road, ca. 2 mi. S of FL 22, ca. 1.8 air mi. NE of Little Sandy and Sandy Creek junction (in Bay County), ca. 11.2 air mi. W of Wewahitchka. T4S, R11W, Sec. 30, SW¼ of NW¼. 30° 6' 30" N 85° 23' 24" W
Habitat Clearcut sandy flatwoods/sandhill ecotone.
Reproductive State Fruit
Elevation 33 to ft
Collector S. L. Orzell 20276
with E.L. Bridges
Collection Date 18 Jul 1992
Accession Number 228161
Image 228161.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , St. Johns Co. : W side of FL 13, ca. 0.3 mi. N of FL 305, ca. 1.5 mi. N of FL 13A, ca. 4.4 mi. N of FL 207, ca. 4 air mi. SE of Riverdale. T8S, R28E, Sec. 20, NW¼ of SE¼ of NW¼. 29° 47' 38" N 81° 30' 18" W
Habitat Narrow roadside sandhill. Soils - Tocoi (Ultic Haplaquods).
Reproductive State Flower Bud
Elevation 13 to 15 ft
Collector S. L. Orzell 22100
with E.L. Bridges
Collection Date 09 Jun 1993
Accession Number 247407
Image 247407.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: Wunderlin, 1994
Determination History
Silphium astericus L.
Locality USA. Florida , Citrus Co. : Crystal River, US 19 and C-494.
Reproductive State Flower Bud
Collector M. E. Schmid
Collection Date 23 Jun 1983
Accession Number 179304
Image 179304.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Alachua Co. : 1.5 mi. W of I-75 on C-236.
Habitat Disturbed turkey oak [Querucs laevis] woods.
Reproductive State Flower Bud
Collector R. P. Wunderlin 8999
with J. Beckner
Collection Date 10 May 1981
Accession Number 157823
Image 157823.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Clay Co. : Ca. 10 mi. SW of Penny Farms, along FL 21, 6 mi. S of FL 16.
Habitat Edge of wet pine flatwoods.
Reproductive State Flower Bud
Collector R. P. Sauleda 5461
Collection Date 31 May 1981
Accession Number 157774
Image 157774.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Citrus Co. : Crystal River, Golf View Lane, 2 blocks from Country Club Lane. 26° 28' 60" N 80° 5' 60" W
Reproductive State Flower Fruit
Collector M. E. Schmid
Collection Date 01 Sep 1983
Accession Number 176663
Image 176663.jpg
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Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Florida , Marion Co. : Silver River State Park. Silver Springs. 29° 12' 17" N 82° 2' 50" W
Description Ray flowers yellow.
Habitat Sandhill, with Pinus palustris, Serenoa repens, and Aristida spp.
Reproductive State Flower
Collector J. Hubbard 638
Collection Date 04 Sep 2006
Accession Number 260754
Image 260754.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: S. B. Davis,
Locality USA. Florida , Hernando Co. : Along Croom Road, 1.1 mi. SE of Nobleton. 28° 38' 44" N 82° 15' 50" W
Description Several plants.
Habitat Woody roadside.
Reproductive State
Collector L. Baltzell 10433
Collection Date 20 Aug 1978
Accession Number 263733
Image 263733.jpg
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: A. R. Franck, 22-Jun-2016
Determination History
Silphium venosum Small
Locality USA. Florida Northwest Florida. 28° 0' 0" N 82° 0' 0" W
Habitat Wet ground.
Reproductive State Fertile
Collector M. Mulvania
Collection Date 24 May 1930
Accession Number 286989
Image 286989.JPG
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Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: S. R. Hill, Oct 1987
Locality USA. South Carolina , Anderson Co. : NW corner of intersection SC 28 and co. road 279 (Fants Grove Baptist Church); N of Pendleton ca. Pickens County line.
Description Occasional to locally frequent herb 7 ft. tall; rays yellow; disc green; stems glaucous; leaves mostly basal; cutover area.
Habitat Roadside pine/oak woodland.
Reproductive State Flower
Collector S. R. Hill
Collection Date 13 Sep 1987
Accession Number 200665
Image 200665.JPG
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: S. R. Hill, Sep 1991
Locality USA. South Carolina , Oconee Co. : Junction Old Rocky Gap Road (CH 38) and co. road 39; mountain rest; Blue Ridge Province.
Description Flowers yellow; occasional herb ca. 6 ft. tall.
Habitat Full sun; roadside bank.
Reproductive State Flower
Elevation 1700 to ft
Collector S. R. Hill
Collection Date 23 Aug 1991
Accession Number 206743
Image 206743.JPG
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: S. R. Hill, Sep 1991
Locality USA. South Carolina , Oconee Co. : Junction Old Rocky Gap Road (CH 38) and co. road 39; mountain rest; Blue Ridge Province.
Description Flowers yellow; occasional herb ca. 6 ft. tall.
Habitat Full sun; roadside bank.
Reproductive State Flower
Collector S. R. Hill
Collection Date 23 Aug 1991
Accession Number 206744
Image 206744.JPG
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx. - Determined By: S. R. Hill, Sep 1989
Locality USA. South Carolina , Oconee Co. : Hill property; bordering Sumter National Forest on N; W Village Creek on E; Old Rocky Gap Road on SE; Ca. 1 mi. SW of Mountain Rest Lake; Blue Ridge Province.
Description Flowers yellow; occasional herb ca. 7 ft. tall; stems somwhat glaucous.
Habitat Sunny roadside.
Reproductive State Flower
Elevation 1700 to 2000 ft
Collector S. R. Hill
Collection Date 27 Aug 1989
Accession Number 203603
Image 203603.JPG
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Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. North Carolina , Carteret Co. : Between Beaufort and Atlantic.
Description Flowers green with yellow rays; 4 ft.
Habitat Coastal pine-flats; soil sandy.
Reproductive State Flower
Collector D. H. Nicolson
Collection Date 09 Sep 1964
Accession Number 67757
Image 67757.JPG
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. Georgia , Gwinnett Co. : 0.7 mi. E of Duluth; Piedmont.
Habitat Well drained old cemetary; full sun; clay soil.
Reproductive State Flower
Collector S. B. Jones
Collection Date 15 Sep 1967
Accession Number 163675
Image 163675.JPG
Plant Atlas Link Plant Atlas Citation

Silphium compositum
Family Name Asteraceae
Currently Accepted Name Silphium compositum Michx.
Locality USA. North Carolina , Alamance Co. : 2 mi. N of Ossipee.
Habitat Roadside.
Reproductive State Flower
Collector G. S. Ramseur
with A.E. Hammond
Collection Date 10 Oct 1956
Accession Number 15219
Image 15219.JPG
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