General: Perennial herb from a creeping rhizome; stems erect, branched above, numerous, more or less white woolly-hairy, 10-50 cm tall; flowering stems appear before the leaves.
Leaves: Basal leaves triangular on long stalks, shallowly to conspicuously toothed, usually with 20 or more teeth per side, white-woolly to nearly glabrous beneath, green and somewhat hairy above, 5-35 cm long including the stalk, 5-25 cm wide; stem leaves reduced to parallel-veined bracts, 1-8 cm long, reduced upwards, more or less white woolly-hairy.
Flowers: Heads disciform or with ray and disk flowers, several to many in a round- to flat-topped inflorescence, stalks more or less white woolly-hairy; involucres 7-12 mm tall; involucral bracts oblanceolate to lanceolate, pointed, hairy basally with multicellular glandular hairs, the crosswalls often purple, margins translucent and often ragged; ray flowers few, whitish or pinkish, 6-10 mm long; disk flowers whitish.
Fruits: Achenes 5-to 10-ribbed, glabrous; pappus of numerous white capillary bristles.
Wet to moist bogs, fens and marshes in the montane to subalpine zones; common throughout BC east of the Coast-Cascade Mountains; N to AK, YT and NT, E to PQ and S to WI, ID, CO and WA.
Ecological Framework for Petasites frigidus var. sagittatus
The table below shows the species-specific information calculated from original data (BEC database) provided by the BC Ministry of Forests and Range. (Updated August, 2013)
