[Specimen details]

Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: Wunderlin, 1976
Determination History
Eupatorium coelestinum L.
Locality USA. Florida , Pinellas Co. : Vicinity of Kapok Tree Restaurant off FL 60.
Reproductive State Flower Fruit
Collector O. K. Lakela 31843
Collection Date 13 Apr 1969
Accession Number 85963
Image 85963.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Manatee Co. : Bradenton. NW of the intersection of 16th Street East and Manatee Avenue (FL 64). T34S, R18E, Sec. 30. 27° 29' 56" N 82° 34' 29" W
Description Flowers light blue, very fragrant.
Habitat In dry, sandy soil in both full sun and shade of native and exotic trees on vacant lot.
Reproductive State Flower
Collector A.G. Shuey 2533
Collection Date 27 Feb 1982
Accession Number 167184
Image 167184.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: Wunderlin, 1976
Determination History
Eupatorium coelestinum L.
Locality USA. Florida , Hillsborough Co. : Tampa. Sulphur Springs, Hillsborough River near the Florida Avenue bridge. At point of small channel intersection with river. 27° 55' 0" N 82° 20' 60" W
Description One colony; flowers pale lavender.
Reproductive State Flower Fruit
Collector D. Laker
Collection Date 13 Mar 1965
Accession Number 100442
Image 100442.jpg
Plant Atlas Link Plant Atlas Citation

Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: Wunderlin, 1976
Determination History
Ageratum conyzoides L. - Determined By: Schallert,
Locality USA. Florida , Seminole Co. : My home [Altamonte Springs].
Habitat Low roadside.
Reproductive State Flower Fruit
Collector P. O. Schallert 16939
Collection Date 25 Oct 1963
Accession Number 66578
Image 66578.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: Wunderlin, 1976
Determination History
Coleosanthus cordifolius (Elliott) Kuntze
Eupatorium coelestinum L. - Determined By: Lakela, 1969
Locality USA. Florida , Pinellas Co. : 1 mi. E of Clearwater city area. 27° 57' 54" N 82° 54' 40" W
Habitat In black soil, swampy area.
Reproductive State Flower Fruit
Collector J. Bright 17
Collection Date 01 Dec 1946
Accession Number 55887
Image 55887.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Manatee Co. : Palmetto. 27° 31' 17" N 82° 34' 20" W
Description Ligules [ray florets] blue. Perhaps an escape from cultivation.
Reproductive State Flower
Collector G. E. Moore 17
Collection Date 13 Feb 1959
Accession Number 6080
Image 6080.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Hillsborough Co. : At SE corner of Dale Mabry Highway and Gunn Highway (Busch Boulevard).
Habitat Wet marsh and pond margins.
Reproductive State Flower
Collector D. W. Crewz 1315
with S. Mortellaro
Collection Date 28 Apr 1978
Accession Number 131939
Image 131939.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Pinellas Co. : Sawgrass Lake Park. Ca. 1 mi. E of the center of Pinellas Park. T30S, R16E, Sec. 26. 27° 52' 60" N 82° 42' 0" W
Reproductive State Flower
Collector T. F. Rochow
Collection Date 17 Mar 1981
Accession Number 155528
Image 155528.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Pinellas Co. : Sawgrass Lake Park. 30° 11' 34" N 81° 22' 14" W
Habitat Old field.
Reproductive State Flower Fruit
Collector D. Hatten 128
with E. Stere
Collection Date 11 Dec 1978
Accession Number 140391
Image 140391.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Palm Beach Co. : Loxahatchee River Corridor. Along edge of maintenance road along W property line, above riverbank. Ca. 0.15 mi. N of Indiantown Road, ca. 1.2 mi. W of Floridas Turnpike, ca. 0.1 mi. E of Taylor Road. 26° 56' 21" N 80° 10' 30" W
Reproductive State Flower Fruit
Collector K. A. Bradley 730
with S. Woodmansee
Collection Date 16 Oct 1997
Accession Number 223263
Image 223263.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Hillsborough Co. : Eurika Springs; road across from church; residence of Arthur Greenberg.
Habitat Along spring runway; growing with Sambucus simpsonii and various imported exotics.
Reproductive State Flower
Collector J. Utley
Collection Date 15 Feb 1967
Accession Number 79353
Image 79353.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Missouri , St. Louis Co. : Spring Flowers Show 1972.
Description Flowers lavender; bedding plants 20 cm tall.
Reproductive State Flower
Collector W. G. D'Arcy
Collection Date 17 Apr 1972
Accession Number 201804
Image 201804.jpg
Plant Atlas Link Plant Atlas Citation

Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Missouri , St. Louis Co. : Spring Flowers Show 1972.
Description Flowers lavender; bedding plants 20 cm tall.
Reproductive State Flower
Collector W. G. D'Arcy
Collection Date 17 Apr 1972
Accession Number 122238
Image 122238.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality Jamaica. Surrey Co. , St. Thomas Par. : Back Field, 1 mi. NE of Abbey Green.
Description Weed; heads lavender, showy.
Habitat Coffee field.
Reproductive State Flower
Elevation 4000 to ft
Collector G. R. Proctor
Collection Date 23 Jan 1952
Accession Number 11589
Image 11589.JPG
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Florida , Orange Co. : University of Central Florida campus. 28° 0' 0" N 82° 0' 0" W
Description Plant with a distinct odor; leaves peduncles and phyllaris appear eglandular.
Reproductive State Flower
Collector W. K. Taylor
Collection Date 02 Mar 2016
Accession Number 295290
Image 295290.JPG
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality USA. Alabama , Montgomery Co. : Federal Drive at AL State Farmer's Market adjacent to Garrett Coliseum.
Habitat Weeds around parking lot, full sun.
Reproductive State
Collector A. R. Diamond
Collection Date 03 Nov 2013
Accession Number 273505
Image 273505.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: G. G. Robinson,
Locality Mexico. Oaxaca San Felipe Usila. 17° 52' 18" N 96° 31' 42" W
Reproductive State Flower
Collector B. Sabino
Collection Date 26 Mar 1990
Accession Number 205180
Image 205180.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: G. G. Robinson,
Locality Mexico. Oaxaca , Comaltepec Mun. : Dist de Choapan. 17° 24' 42" N 95° 58' 36" W
Reproductive State Flower
Collector Maximo
Collection Date 05 Mar 1995
Accession Number 214299
Image 214299.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality Mexico. Veracruz Ca. 10 km E Cordoba Route 150. 18° 55' 53" N 96° 56' 10" W
Habitat Hedges and roadsides, heavily cultivated region.
Reproductive State Flower
Elevation 2000 to ft
Collector R. W. Long
with D. Burch
Collection Date 24 Mar 1970
Accession Number 133452
Image 133452.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill.
Locality Honduras. Francisco Morazán Dept. Tatumbla, 25 km SE de Tegucigalpa. 15° 37' 60" N 88° 15' 0" W
Habitat Bosque húmedo subtropical.
Reproductive State Flower
Elevation 1300 to m
Collector C. Bendeck
Collection Date 18 May 1985
Accession Number 195293
Image 195293.jpg
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Ageratum houstonianum
Family Name Asteraceae
Currently Accepted Name Ageratum houstonianum Mill. - Determined By: C. vanHoek, 2019
Determination History
Ageratum conyzoides L.
Locality USA. Florida , Orange Co. : Orlando. 28° 32' 18" N 81° 22' 45" W
Reproductive State Flower
Collector M. Mulvania
Collection Date 29 Aug 1930
Accession Number 302048
Image 302048.jpg
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