Distribution: Occurring chiefly west of the Cascades crest and in the Columbia River Gorge in Washington; southern British Columbia to Oregon, east to Idaho, also from the Great Plains east to the Atlantic Coast.
Habitat: Prairies, forest edge, fields, roadsides, wastelots, and other open areas at low to middle elevations.
Flowers: April-June
Origin: Introduced from Europe
Growth Duration: Annual
Conservation Status: Not of concern
Pollination: Self-pollination, bees, flies
[none provided]
Publication: Sp. Pl. 1: 438. 1753.
PNW Herbaria: Specimen records of Cerastium semidecandrum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Cerastium semidecandrum checklist entry
OregonFlora: Cerastium semidecandrum information
E-Flora BC: Cerastium semidecandrum atlas page
CalPhotos: Cerastium semidecandrum photos
