Rosa
rose
8 species
4 subspecies and varieties
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Scientific name
Common name
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Rosa caninadog rose
Distribution: Introduced at low elevations west of the Cascades, and in Idaho
Habitat: Roadside thickets.
Origin: Introduced
Flowers: May - June
Rosa gymnocarpa
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.
Origin: Native
Flowers: May-July
Rosa multifloramultiflora rose, rambler rose
Distribution: Occurring on both sides of the Cascades crest in Washinton; British Columbia to California; east to the southern Rocky Mountains, Great Plains, and eastern North America where widespread.
Habitat: Roadsides, fields, highway and utility right of ways, forest edge, and other often moist, disturbed areas where escaping from cultivation.
Origin: Introduced from Asia
Flowers: April-June
Rosa nutkanaNootka rose
Distribution: Widely distributed throughout Washington on both sides of the Cascades crest; Alaska to California, east to the Rocky Mountains.
Habitat: Thickets, shores, forest edges, riparian zones, rocky slopes from low elevations to the montane.
Origin: Native
Flowers: May-July
ssp. macdougalii – bristly Nootka rose
ssp. nutkana – Nootka rose
Rosa pisocarpaclustered rose, peafruit rose
Distribution: Occurring west of the Cascades crest in Washington; southern British Columbia to California.
Habitat: Thickets, stream banks, and swampy places at lower elevations.
Origin: Native
Flowers: May-July
Rosa rubiginosasweetbrier rose, small-flowered sweetbrier
Distribution: Introduced chiefly west of the Cascades, and in eastern United states.
Habitat: Roadsides and pastures, occasionally in more natural areas.
Origin: Introduced
Flowers: June - July
Rosa rugosarugosa rose
Distribution: Known from a few scattered locations in lowland western Washington; Alaska and Washington in western North America; in the north-central and northeastern areas of North America.
Habitat: Edge of saltwater beaches, roadsides, forest edge, fields, and other disturbed areas.
Origin: Introduced
Flowers: June-August
Rosa woodsiipearhip rose
Distribution: Occurring east of the Cascades crest in Washington; Alaska south to California, east to the central U.S. and eastern Canada.
Habitat: Valleys and hillsides at low elevations to forest openings at mid-elevations in the mountains.
Origin: Native
Flowers: May-July