White Snakeroot
Scientific Name:Ageratina altissima


NOTES: Often lethal if eaten, causing trembles in livestock and milk sickness in humans that drink tainted milk. Deer resistant. Aster family (flower heads composed of multiple florets, often disk flowers or both disk and ray flowers).

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White Snakeroot
Genus species: Ageratina altissima
Common Name: White Snakeroot
Family Name: Asteraceae  
Flowers of two basic types: 1) disk florets with tubular corollas, and 2) ray florets with ligulate corollas. Heads are composed of exclusively one type or the other (discoid or ligulate), or typically with disk florets in the center and ray florets around the perimeter; fruit an achene (or cypsela).
Seed Type: Angiosperm
Origin:  
Native: native to North America.
Non-native: not native to North America.
Introduced Native: native to North
America, but not Rowe Woods.
* Definitions based on the USDA
terminology
Native
Category:Wildflower
Flower Color:White
CNC Habitat: Krippendorf Arboretum
Backyard Habitat
Nature Playscape
Herb Wall
Identified by:A. Swanson
Months in Bloom:  
The highlighted month(s) in this chart indicate when the plant has been observed blooming.
Jan Feb Mar Apr May
Jul Aug Sep Oct Nov Dec

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