E-Flora BC: Electronic Atlas of the Flora of British Columbia

Tussilago farfara L.
coltsfoot
Asteraceae (Aster family)

Introduction to Vascular Plants

© Diane Williamson  Email the photographer   (Photo ID #16238)

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Distribution of Tussilago farfara
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Species Information

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General:
Perennial herb from a creeping rhizome; stems erect, numerous, simple, more or less white woolly-hairy, 5-50 cm tall.
Leaves:
Basal leaves arising direct from the rhizome, developing well after the flowering stems, long-stalked, heart-shaped or triangular with a deep, narrow indentation at the base, callous-toothed and shallowly lobed, 5-30 cm long, glabrous above, white-woolly beneath; stem leaves reduced to numerous alternate, parallel-nerved bracts, 0.6-1.6 cm long, entire, sparsely long-hairy and glandular, the glands purple-tipped, not much reduced upwards.
Flowers:
Heads with ray and disk flowers, solitary; involucres 8-15 mm tall; involucral bracts linear-lanceolate to lanceolate or oblanceolate, nearly glabrous above, sparsely to moderately long-hairy below and also glandular (the glands purple-tipped), margins translucent with purplish cross walls, inconspicuously hairy at the tips; ray flowers yellow, narrow, 8-12 mm long.
Fruits:
Achenes linear, 5- to 10-ribbed, glabrous; pappus of numerous white hairlike bristles.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet ditches and disturbed sites in the lowland zone; rare in SW BC, known from S Vancouver Island and the lower Fraser River valley; introduced from Eurasia.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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General References