Rorippa
yellowcress
9 species
2 subspecies and varieties
2 subspecies and varieties
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Rorippa austriaca – Austrian yellowcress field-cress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, eastward in scattered locations to the Atlantic Coast.
Habitat: Disturbed areas and waste ground.
Origin: Introduced from Europe
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, eastward in scattered locations to the Atlantic Coast.
Habitat: Disturbed areas and waste ground.
Origin: Introduced from Europe
Flowers: June-August
Growth Duration: Perennial
Rorippa columbiae – Columbia yellowcress cress
Distribution: Occurring east of the Cascades crest in south-central Washington; Washington to California.
Habitat: Stream banks and gravel bars, pond margins, meadows, and roadsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in south-central Washington; Washington to California.
Habitat: Stream banks and gravel bars, pond margins, meadows, and roadsides.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Rorippa curvipes – blunt-leaved yellowcress, truncate yellowcress
Distribution: Occurring chiefly east of the Cascades in Washington; British Columbia to California, east to the Great Plains and Great Lakes region.
Habitat: Wet areas including streambanks, lake shores, wet meadows, and ditches.
Origin: Native
Flowers: May-September
Growth Duration: Annual, Perennial
Distribution: Occurring chiefly east of the Cascades in Washington; British Columbia to California, east to the Great Plains and Great Lakes region.
Habitat: Wet areas including streambanks, lake shores, wet meadows, and ditches.
Origin: Native
Flowers: May-September
Growth Duration: Annual, Perennial
Rorippa curvisiliqua – western yellowcress
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Colorado.
Habitat: Stream banks, pond edges, and seasonally wet soils, low to mid-elevations in the mountains
Origin: Native
Flowers: May-September
Growth Duration: Annual, Biennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Montana and Colorado.
Habitat: Stream banks, pond edges, and seasonally wet soils, low to mid-elevations in the mountains
Origin: Native
Flowers: May-September
Growth Duration: Annual, Biennial
Rorippa palustris – bog yellowcress, marsh yellowcress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast; circumboreal.
Habitat: Marshes, shorelines, and other wet areas.
Origin: Native
Flowers: June-October
Growth Duration: Annual, Biennial, Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast; circumboreal.
Habitat: Marshes, shorelines, and other wet areas.
Origin: Native
Flowers: June-October
Growth Duration: Annual, Biennial, Perennial
• ssp. hispida – hipsid bog yellowcress
• ssp. palustris – bog yellowcress
Rorippa sinuata – spreading yellowcress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to central North America.
Habitat: Wet areas including pond and lake margins, stream banks, and ditches.
Origin: Native
Flowers: May-September
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to central North America.
Habitat: Wet areas including pond and lake margins, stream banks, and ditches.
Origin: Native
Flowers: May-September
Growth Duration: Perennial
Rorippa sphaerocarpa – roundfruit yellowcress
Distribution: Occurring in the Columbia River Gorge in Washington; otherwise southwestern Idaho to California, east to Wyoming and Texas.
Habitat: Pond shores, river shorelines, and stream banks.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Columbia River Gorge in Washington; otherwise southwestern Idaho to California, east to Wyoming and Texas.
Habitat: Pond shores, river shorelines, and stream banks.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Rorippa sylvestris – creeping yellowcress
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to Oregon, east across North America to the Atlantic Coast.
Habitat: Disturbed, moist areas at low to middle elevations.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; British Columbia to Oregon, east across North America to the Atlantic Coast.
Habitat: Disturbed, moist areas at low to middle elevations.
Origin: Introduced from Europe
Flowers: May-August
Growth Duration: Perennial
Rorippa tenerrima – Modoc yellowcress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the central U.S.
Habitat: Lakeshores and other wet areas, lowland to montane.
Origin: Native
Flowers: June-August
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to the central U.S.
Habitat: Lakeshores and other wet areas, lowland to montane.
Origin: Native
Flowers: June-August
Growth Duration: Annual
