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

Gamochaeta ustulata (Nutt.) G.L. Nesom
purple cudweed
Asteraceae (Aster family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #4169)

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Distribution of Gamochaeta ustulata
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Species Information

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Annual or biennial herb from a fibrous root; stems simple or branched, thinly woolly hairy, 10-40 cm tall.
Basal leaves soon deciduous, lower leaves alternate, entire, spoon-shaped, blunt or rounded, thinly woolly-hairy, 1.5-10 cm long, 0.2-2 cm wide; upper leaves similar, reduced upwards.
Heads disciform in a narrow, dense, spikelike inflorescence; involucres 3-5 mm tall; involucral bracts graduated, the tips abruptly sharp-pointed or long pointed, light brown, often tinged with pink or purple.
Achenes nerveless with nipplelike projections; pappus bristles united at the base, deciduous in a ring.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry waste places and open areas in the lowland zone; frequent in SW BC, rare on the Queen Charlotte Islands; introduced from more southern regions in North America

Source: The Illustrated Flora of British Columbia


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.

Synonyms and Alternate Names

Gnaphalium purpureum var. purpureum
Gnaphalium purpureum var. ustulatum (Nutt.) B. Boivin
Gnaphalium ustulatum Nutt.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References