Ageratina altissima

Not to be confused with Eupatorium altissimum.

White snakeroot

Secure  (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Ageratina
Species:
A. altissima
Binomial name
Ageratina altissima
(L.) King & H.E.Robins.
Natural range in North America
Synonyms[2]
List
    • Ageratina ageratoides (L.f.) Spach
    • Ageratina luciae-brauniae (Fernald) R.M.King & H.Rob.
    • Ageratum altissimum L.
    • Batschia nivea Moench
    • Eupatorium aboriginum Greene
    • Eupatorium ageratoides L.f.
    • Eupatorium angustatum: (A.Gray) Greene
    • Eupatorium boreale Greene
    • Eupatorium cordatum var. fraseri (Poir.) DC.
    • Eupatorium deltoides E.L.Braun 1940, illegitimate homonym not Eupatorium deltoideum Jacq. 1798
    • Eupatorium eurybiaefolium Greene
    • Eupatorium frasieri Poir.
    • Eupatorium luciae-brauniae Fernald
    • Eupatorium roanense Small
    • Eupatorium rugosum Houtt.
    • Eupatorium urticifolium Reichard

Ageratina altissima, also known as white snakeroot,[3] richweed,[3] or white sanicle,[4] is a poisonous perennial herb in the family Asteraceae, native to eastern and central North America. An older binomial name for this species is Eupatorium rugosum, but the genus Eupatorium has undergone taxonomic revision by botanists, and some species once included in it have been moved to other genera.

  1. ^ NatureServe (1 December 2023). "Ageratina altissima". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 16 December 2023.
  2. ^ "Ageratina altissima". The Global Compositae Checklist (GCC) – via The Plant List. Note that this website has been superseded by World Flora Online
  3. ^ a b "Ageratina altissima". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 1 January 2018.
  4. ^ "Ageratina altisima (Eupatorium rugosum)". Guide to Poisonous Plants. James L. Voss Veterinary Teaching Hospital, College of Veterinary Medicine & Biomedical Sciences, Colorado State University.