Biology:Eupatorium album
| White thoroughwort | |
|---|---|
| |
| Eupatorium album var album, 1913 botanical illustration. | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Eupatorium |
| Species: | E. album
|
| Binomial name | |
| Eupatorium album | |
| Synonyms[2] | |
|
Synonymy
| |
Eupatorium album, or white thoroughwort, is a herbaceous perennial plant in the family Asteraceae native from the eastern and southern United States, from eastern Texas to Connecticut, inland as far as Indiana .[3][4]
As with other members of the genus Eupatorium, Eupatorium album flowers with large numbers of small white heads. The flower heads have 4-5 disc florets each, but no ray florets.[5] The plant grows 50–100 cm (20–39 in) tall,[3] making it one of the shorter Eupatorium species.[5]
Eupatorium album is capable of hybridizing with other Eupatorium species including Eupatorium sessilifolium and Eupatorium serotinum.[3] Its appearance is similar to Eupatorium altissimum, but differs in that the bracts (located at the base of the flower head) taper to a long point.[6]
Eupatorium album grows in dry, open areas such as power lines, old fields, and eroded slopes. It will not grow under a shady canopy, but can be found in some open woods such as pine barrens.[6]
- Varieties[3]
- Eupatorium album var. album - most of species range
- Eupatorium album var. subvenosum A. Gray - Delaware, District of Columbia, New Jersey, New York
- Eupatorium album var. vaseyi (Porter) Cronquist - from Alabama to Pennsylvania
References
- ↑ "Eupatorium album". NatureServe Explorer. NatureServe. http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Eupatorium+album. Retrieved 2010-09-12.
- ↑ The Plant List, Eupatorium album L.
- ↑ 3.0 3.1 3.2 3.3 "Eupatorium album". Flora of North America. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066731.
- ↑ Biota of North America Program 2014 county distribution map
- ↑ 5.0 5.1 "Eupatorium". Flora of North America. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=112351.
- ↑ 6.0 6.1 Rebecca W. Dolan (September 2004). "Conservation Assessment for White thoroughwort (Eupatorium album L.)". United States Forest Service, Eastern Region of the Forest Service - Threatened and Endangered Species Program. http://www.fs.fed.us/r9/wildlife/tes/ca-overview/docs/Eupatorium%20album2.pdf.
Further reading
- Herz, W; Sharma, Rp (March 1976). "New hydroxylated ent-kauranoic acids from Eupatorium album". The Journal of Organic Chemistry 41 (6): 1021–6. doi:10.1021/jo00868a023. ISSN 0022-3263. PMID 1255283.
External links
- Alabama Plants, Photographs and information for the plants of Alabama, USA , including photos.
- photo of herbarium specimen at Missouri Botanical Garden, collected in Missouri in 2012
Wikidata ☰ Q5409932 entry
 |  |
