General: Perennial herb from a taproot and stoloniferous prostrate stems; forming mats 4-40 cm wide; stems prostrate, glandular-hairy, slender, less than 1 mm in diameter, flowering stems 3-25 cm long.
Leaves: Basal leaves lacking; stem leaves opposite, narrowly oblong or oblong-lanceolate to spoon-shaped, 5-35 mm long, 3-8 mm wide, sharp-pointed to rounded, hairy; stipules lacking.
Flowers: Inflorescence of usually 3-6 flowers in an open cluster; petals 5, white, 6-12 mm long, deeply 2-cleft; sepals 5, elliptic, 3-7 mm long, often purplish.
Fruits: Capsules cylindric, 8-12 mm long, 10-valved; seeds golden to reddish-brown, 0.8-1.2 mm long.
Notes: Sometimes confused with C. fischerianum where their ranges overlap. Two subspecies occur in BC.
1. Stalks with very fine, short, glandular hairs; plants of S BC..................... ssp. earlei (Rydb.) Hult.
1. Stalks with long glandular hairs, plants of N BC..................... ssp. beeringianum
Dry rocky slopes, talus slopes and cliffs in the upper subalpine and alpine zones; common E of the Coast-Cascade Ranges, rare on Vancouver Island; circumpolar, N to AK, YT and NT, E to NF and S to UT, CO, AZ and CA; Asia.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2019. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
2020-02-28 8:36:55 PM
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