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Prenanthes
Also called Purple Lettuces, Purple Prenanthes
Prenanthes is a genus of plant in the family Asteraceae, often referred to as rattlesnake root.
Molecular analysis in 2009 revealed that the genus as traditionally envisioned was polyphyletic, meaning that it is a conglomeration of species not closely related to one another. The genus formerly included species now placed in Aetheorhiza, Askellia, Brickellia, Chondrilla, Crepidiastrum, Crepis, Emilia, Erythroseris, Faberia, Hololeion, Hypochaeris, Ixeris, Lactuca, Lapsanastrum, Launaea, Lygodesmia, Nabalus, Notoseris, Paraprenanthes, Parasenecio, Picrosia, Sonchella, Sonchus, Soroseris, Stephanomeria, Trixis, and Youngia.
Text excerpted from the Wikipedia article Prenanthes by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
