Prenanthes

Prenanthes is a genus of plant in the family Asteraceae, often referred to as rattlesnake root.^[1][2]

Prenanthes
Prenanthes purpurea
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Subfamily:	Cichorioideae
Tribe:	Cichorieae
Subtribe:	Hypochaeridinae
Genus:	Prenanthes L.

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.^[3] 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.^[4]

Species

As of May 2024^[update], Plants of the World Online accepted nine species:^[5]

• Prenanthes hookeri C.B.Clarke ex Hook.f.
• Prenanthes mira (Pavlov) Kamelin
• Prenanthes nothae Kurz
• Prenanthes petiolata (K.Koch) Sennikov
• Prenanthes purpurea L.
• Prenanthes steenisii Tjitr.
• Prenanthes stenolimba Steenis
• Prenanthes subpeltata Stebbins
• Prenanthes sumatrana Tjitr.