Ageratina adenophora (Spreng.) R. M. King & H. Rob.
Sticky snakeroot, Thoroughwort
2019 Ron Vanderhoff 2017 Keir Morse 2021 Heather Brady DeQuincy 2019 Ron Vanderhoff 2019 Rachel Kesel 2019 Tatiana Manzanillo 2019 Michael Sturtevant 2021 Cara Wilcox 2019 Nancy Hamlett 2024 Ron Vanderhoff 2024 Ron Vanderhoff 2021 Jon Thompson 2023 Christopher Gort
Ageratina adenophora is a perennial herb that is not native to California.
[Wikipedia] Origins and Introduction: Ageratina adenophora (synonym Eupatorium adenophorum), commonly known as Crofton weed, is a species of flowering plant in the family Asteraceae native to Mexico and Central America. Originally grown as an ornamental plant, it has become invasive into farmland and bushland worldwide. It is toxic to horses, who develop a respiratory disease known as Numinbah Horse Sickness after eating it. (link added by Jessica Johnston)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2024. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 12/09/2024).