Senecio elmeri Piper
Elmer's butterweed (Elmer's ragwort)
Asteraceae (Aster family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #31300)


Map

E-Flora BC Static Map

Distribution of Senecio elmeri
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Species Information

General:
Perennial herb from a branching, rhizome-like woody stem-base; stems ascending, several, branched above, 9-30 cm tall, woolly-hairy at first becoming almost glabrous at flowering time.
Leaves:
Basal and lower stem leaves narrowly oblanceolate to broadly elliptic or rounded, stalked, 4-20 cm long, 1-3 cm wide, toothed, woolly-hairy at first becoming almost glabrous at flowering time; stem leaves well-developed but reduced upwards, becoming unstalked.
Flowers:
Heads with ray and disk flowers, several, nodding in a rounded inflorescence; involucres 7-12 mm tall; involucral bracts lanceolate, long-hairy and often purplish or blackish at the tips; bracteoles few, usually purplish-tipped; ray flowers yellow, 8-16 mm long; disk flowers yellow.
Fruits:
Achenes oblong, ribbed, glabrous; pappus of white hairlike bristles.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Habitat and Range

Moist talus or gravelly slopes in the subalpine and alpine zones; locally frequent in the Coast-Cascade Mountains of SW and SC BC; S to N WA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Senecio crepidineus Greene