Eupatorium album

White thoroughwort
Conservation status

Secure  (NatureServe)[1]
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Eupatorieae
Genus: Eupatorium
Species: E. album
Binomial name
Eupatorium album
L.
Synonyms

Uncasia alba (L.) Greene

Eupatorium album, or white thoroughwort, is a herbaceous perennial plant in Asteraceae native from the eastern states of the USA.[2] Like other members of the genus Eupatorium, it flowers with large numbers of small white heads. The flower heads have disc florets but no ray florets.[3] It grows a half meter to one meter tall,[2] making it one of the shorter Eupatorium species.[3]

It is capable of hybridizing with other Eupatorium species including Eupatorium sessilifolium and Eupatorium serotinum.[2] 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.[4]

E. album is native to the eastern United States, from the Atlantic coast to as far west as Louisiana, Ohio, and New York.[2] It 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.[4]

References

  1. ↑ "Eupatorium album". NatureServe Explorer. NatureServe. Retrieved 2010-09-12.
  2. ↑ 2.0 2.1 2.2 2.3 "Eupatorium album". Flora of North America.
  3. ↑ 3.0 3.1 "Eupatorium". Flora of North America.
  4. ↑ 4.0 4.1 Rebecca W. Dolan (September 2004). "Conservation Assessment for White thoroughwort (Eupatorium album L.)" (PDF). United States Forest Service, Eastern Region of the Forest Service - Threatened and Endangered Species Program.

Further reading

External links