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

Collomia linearis Nutt.
narrow-leaved collomia (tiny trumpet)
Polemoniaceae (Phlox family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #13929)

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Distribution of Collomia linearis
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Species Information

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Annual herb from a taproot; stems erect, unbranched or branched above in robust plants, finely hairy below but long-hairy and glandular above, 10-60 cm tall.
Alternate, numerous, linear or lanceolate, 1-5 cm long, 1-10 mm wide, generally hairless above, glaucous and minutely hairy and slightly glandular below, unstalked, entire; uppermost leaves (below the flower clusters) wider than the rest and often pale at the base.
Inflorescence of 1 to several, terminal, head-like clusters of 7-20 unstalked flowers; corollas pink, bluish or white, the slender, trumpet-shaped tube 8-15 mm long, spreading to five short (1.5-3 mm) lobes; calyces 4-7 mm long, the five narrowly triangular lobes 1.5-3 mm long during flowering but elongating to 3-4 mm in fruit; pollen generally white.
Capsules, with 1-seeded chambers; seeds becoming sticky when moistened.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to moist open grasslands, clearings, old fields, roadsides, and other disturbed sites in the lowland, steppe, and montane zones; common in S BC, less so northward where possibly introduced in some localities; N to AK, YT and NT, E to NB and NS and S to NE, WI, NM and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Collomia linearis

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) 318 946 1807
Slope Gradient (%) 0 33 90
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 192 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 5
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: BG(30), BWBS(1), ESSF(12), ICH(32), IDF(77), MS(24), PP(37), SBPS(1), SBS(5)


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