Rorippa
yellowcress
9 species
2 subspecies and varieties
2 subspecies and varieties
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Rorippa austriaca – Austrian yellowcress field-cress
Distribution: Occurring in scattered locations chiefly east of the Cascades in Washington; Alberta south to California, east to coastal U.S.
Habitat: Disturbed areas and waste ground.
Origin: Introduced from Europe
Flowers: June-August
Distribution: Occurring in scattered locations chiefly east of the Cascades in Washington; Alberta south to California, east to coastal U.S.
Habitat: Disturbed areas and waste ground.
Origin: Introduced from Europe
Flowers: June-August
Rorippa columbiae – Columbia yellowcress cress
Distribution: In the south-central counties of Washington; Washington south to California.
Habitat: Moist, sandy soil.
Origin: Native
Flowers: May-August
Distribution: In the south-central counties of Washington; Washington south to California.
Habitat: Moist, sandy soil.
Origin: Native
Flowers: May-August
Rorippa curvipes – blunt-leaved yellowcress, truncate yellowcress
Distribution: Occurring chiefly east of the Cascades in Washington; widely distributed throughout western and central North America.
Habitat: Wet areas including streambanks, lake shores, wet meadows, and ditches.
Origin: Native
Flowers: May-September
Distribution: Occurring chiefly east of the Cascades in Washington; widely distributed throughout western and central North America.
Habitat: Wet areas including streambanks, lake shores, wet meadows, and ditches.
Origin: Native
Flowers: May-September
Rorippa curvisiliqua – western yellowcress
Distribution: British Columbia to California, east to Montana and Nevada
Habitat: Stream banks and moist soil, low to mid-elevations in the mountains
Origin: Native
Flowers: May - September
Distribution: British Columbia to California, east to Montana and Nevada
Habitat: Stream banks and moist soil, low to mid-elevations in the mountains
Origin: Native
Flowers: May - September
Rorippa palustris – hispid yellowcress, marsh yellowcress
Distribution: Widely distributed throughout Washington; common throughout North America.
Habitat: Wet ground and low elevations.
Origin: Native
Flowers: June-October
Distribution: Widely distributed throughout Washington; common throughout North America.
Habitat: Wet ground and low elevations.
Origin: Native
Flowers: June-October
Rorippa sinuata – spreading yellowcress
Distribution: Occurring in Klickitat County in Washington; British Columbia south to California, east to central North America.
Habitat: Wet areas including pond and lake margins, stream banks, and ditches.
Origin: Native
Flowers: May-September
Distribution: Occurring in Klickitat County in Washington; British Columbia south to California, east to central North America.
Habitat: Wet areas including pond and lake margins, stream banks, and ditches.
Origin: Native
Flowers: May-September
Rorippa sylvestris – creeping yellowcress
Distribution: Known only from Whitman County in Washington; British Columbia south 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
Distribution: Known only from Whitman County in Washington; British Columbia south 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
