Group: Spermatophytina (Spermatophytes)
Family: Asteraceae (Daisy family)
Genus: Petasites (Butterbur)
Petasites spurius (Retz.) Rchb. - Tomentose Butterbur
Petasites albus (L.) Gaertn. - White Butterbur
Petasites paradoxus (Retz.) Baumg. - Alpine Butterbur
Petasites hybridus (L.) G. Gaertn. & al. - Butterbur
15–60 cm tall, without latex. inflorescence: capitula (with involucres), in a panicle-like whole-inflorescence; stalk: only with scale-leaves. capitula: only with tubular-flowers. involucral bracts: 1‑rowed, occasionally with a shorter outer-involucre. flowers:
The colours represent the floristic status of the species in the respective region. Green indicates native occurrences, light green naturalized occurrences. Adventive occurrences are represented by light yellow shades and plants that are cultivated (but rarely occur in the wild) are dark yellow. Grey colours are used, if the floristic status of species is unknown or uncertain.
 |
Natural, established occurences |  |
Artificial occurences |
The color intensity reflects the species' abundance
Data: Floristische Kartierung Deutschlands (Stand 2013), Bundesamt für Naturschutz (www.floraweb.de)
screes, rocky habitats
in alkaline habitats