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

Collomia tenella A. Gray
slender collomia (diffuse collomia)
Polemoniaceae (Phlox family)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #21972)

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Distribution of Collomia tenella
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Species Information

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Annual herb from a taproot; stems ascending to spreading, freely branched, with stalked glands at least on the upper part, to 15 cm tall.
Alternate, linear, 1-5 cm long, 1-5 mm wide, entire.
Single or in pairs along and at the ends of the branches (stems branched so that the nearly stalkless flowers appear to be borne in the forks of the branches and in the axils of the leaves); corollas pinkish to white, 4-6 mm long, the short tube spreading to five lobes; calyces 1/2-2/3 as long as the corollas, bowed out and often forming purplish knobs at the sinuses, the triangular teeth 1-2 mm long.
Capsules, with 1-seeded chambers; seeds becoming sticky when moistened.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry open areas, sagebrush flats and claybanks in the steppe and montane zones; rare in extreme SC BC, known only from the Princeton area, Similkameen Valley; S to UT and NV.

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.

Taxonomic and Nomenclatural Links

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General References