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

Introduction to Vascular Plants


© Werner Eigelsreiter     (Photo ID #7136)


E-Flora BC Static Map

Distribution of Collomia grandiflora
Click here to view the full interactive map and legend

Species Information

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.

SourceThe Illustrated Flora of British Columbia


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.


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
# of field plots
 species was recorded in:
Modal BEC Zone Class

All BEC Zones (# of stations/zone) species was recorded in


Habitat and 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.

SourceThe Illustrated Flora of British Columbia