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

Collomia grandiflora Douglas ex Lindl.
large-flowered collomia (grand collomia)
Polemoniaceae (Phlox family)

Introduction to Vascular Plants

© Werner Eigelsreiter  Email the photographer   (Photo ID #7136)

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Distribution of Collomia grandiflora
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Species Information

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Annual herb from a taproot; stems erect, unbranched when small but can have axillary branches if robust, finely hairy below, long-hairy and glandular or sticky above, 0.1-1 m tall.
Basal leaves somewhat lobed, soon deciduous; stem leaves alternate, numerous, linear or lanceolate, 1-7 cm long, 2-13 mm wide, generally hairless above, glaucous and slightly glandular below, entire (basal somewhat lobed), the upper leaves (below the flower clusters) wider than the rest.
Inflorescence of 1 to several, terminal, head-like clusters of unstalked flowers; corollas salmon- pink or yellow, the slender, flaring tube 20-30 mm long, spreading to five, 5-10 mm long lobes; calyces 7-10 mm long, the five lanceolate lobes to 4 mm long; pollen generally blue.
Capsules, with 1-seeded chambers; seeds becoming sticky when moistened.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to mesic meadows, rocky slopes, and openings in shrublands and forests in the lowland, steppe, and montane zones; infrequent on S Vancouver Island, the Gulf Islands and the lower Fraser Valley, locally frequent in SC BC; S to MT, WY, AZ and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Collomia grandiflora

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)

Site Information
Value / Class




Elevation (metres) 810 810 810
Slope Gradient (%) 47 47 47
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
222 222 222
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 2
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: IDF(1)


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

Additional Photo Sources

General References