Distribution: Occurring on both sides of the Cascades crest in Washington, though more common west of the crest; British Columbia to California, east to Montana.
Habitat: Dry to moist woods, forest edge, and thickets, from sea level to middle elevations in the mountains.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, beetles
Slender, lax shrubs 3-13 dm. tall, usually bristly with slender prickles, occasionally unarmed.
Leaves alternate, deciduous, odd-pinnate with 5-9 leaflets, with stalked glands on the leaf rachis; leaflets elliptic to elliptic-ovate, 1-4 cm. long and 0.5-3 cm. wide, doubly serrate, the teeth gland-tipped, otherwise glabrous.
Flowers small, scattered at branch ends, usually solitary, the pedicel slender, glandular; sepals 5, 5-12 mm. long, broadly lanceolate at the base contracted to a slender, tailed tip, early-deciduous; petals 5, 1-1.5 cm. long, light pink to deep rose; stamens numerous, pistils many, the styles early-deciduous.
Hips 1 cm. long, pear-shaped, scarlet or vermillion; sepals early deciduous and not present on mature fruits.
PNW Herbaria: Specimen records of Rosa gymnocarpa in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Rosa gymnocarpa checklist entry
OregonFlora: Rosa gymnocarpa information
E-Flora BC: Rosa gymnocarpa atlas page
CalPhotos: Rosa gymnocarpa photos