Prenanthes

Rattlesnake root Purple lettuce
Prenanthes purpurea
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Cichorieae
Genus:	Prenanthes L.
Species:	P. purpurea
Binomial name
Prenanthes purpurea L.
Synonyms
Prenanthes tenuifolia L. Chondrilla purpurea (L.) Lam. Prenanthes wolfiana Schur Prenanthes purpurea subsp. tenuifolia (L.) Arcang. Chondrilla tenuifolia (L.) Lam. Prenanthes transsilvanica Schur Prenanthes schlosseri Heuff.

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 is polyphyletic, meaning that it is a conglomeration of species not closely related to one another. All but one species will be moved to other genera, leaving only Prenanthes purpurea. The species, sometimes called purple lettuce, is widespread across much of Europe and the Middle East.

see Aetheorhiza Askellia Brickellia Chondrilla Crepidiastrum Crepis Emilia Erythroseris Faberia Hololeion Hypochaeris Ixeris Kovalevskiella Lactuca Lapsanastrum Launaea Lygodesmia Nabalus Notoseris Paraprenanthes Parasenecio Picrosia Sonchella Sonchus Soroseris Stephanomeria Trixis Youngia

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