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Ageratina Spach. Milk-poison, White Snakeroot.

Key to Ageratina

A genus of about 250-290 species, American. The separation of Ageratina from Eupatorium is clearly warranted, on morphological, karyological, and molecular grounds.

Ref: Clewell & Wooten (1971); Cronquist (1980); Lamont (2018); Nesom (2006mm) In Flora of North America Editorial Committee (2006c). Show full citations.

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image of plant© Sunny Fleming, some rights reserved (CC BY-NC), uploaded by Sunny Fleming | Ageratina luciae-brauniae source | Original Image ⭷