Details of Genus: Petasites Miller
ID: 663
Genus ja:
Genus en: Butterbur, Sweet coltsfoot
# spp.: N/A (from genus_families table) | 2 (from names table)
Accepted: Accepted
Family: Asteraceae
Family ja: キク
Infra familial classification:
Distribution en:
Description en: Genus of about 15 species of dioecious, rhizomatous perennials from Europe, Asia, and North America, some found in mountainous regions, others in swampy sites, by streams, and in moist woodland. They have long-stalked, heart- to kidney-shaped basal leaves and smaller, short-stalked or stalkless, scale-like stem leaves. Thick stems bear purple, white, or yellow flowerheads, which usually consist of a mixture of disc-florets, ray-florets, and thread-like florets (some fertile, some sterile); they are borne singly or in dense corymbs, racemes, or panicles. Individual plants are either male or female. Grown for their large leaves, they provide good ground cover beside a stream or pool, or in a wild garden, although they may become invasive. The flowers provide early nectar for bees.
Hardiness en: Fully hardy to frost hardy. Below -l0°C (14°F), new growth of P. fragrans may die above ground, but the rhizomes will usually survive.
Cultivation en:
Propagation en: Divide in spring or autumn.
Pests en: Trouble free.
Description ja:
Comment: N.temperate
Comment ja: フキ
Type species:
Phylogenetic definition:
Update information: Created: 2007-12-06 12:51; Updated: 2026-03-03 21:57
Family:
| System | Accepted? | Botanical name | Japanese name | Infra-familial classification | # species | |
| PB2 | Asteraceae | キク科 | Show | |||
| PB3 | Asteraceae | キク科 | Show | |||
| APG4 | Accepted | Asteraceae | キク科 | Show |