It is native to the western United States from central Washington to northeastern California, where it grows in moist to wet, sandy habitat types, such as playas (dry lakes). It is not a common plant; it is known from about fifteen occurrences in the Modoc Plateau region of California, it is a candidate for protection in Oregon, and it is state-listed as a threatened species in Washington.
The leaves are deeply lobed, the lobes sometimes cut all the way to the midrib. Lower leaves are borne on petioles; upper leaves have bases that clasp the stem.
The mustardlike flowers have small yellow petals. The fruit is a plump, hairy silique a few millimeters long containing many minute seeds.
- "Rorippa columbiae". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 23 October 2015.
- California Native Plant Society Rare Plant Profile
- Jepson Manual Treatment of Rorippa columbiae
- USDA Plants Profile for Rorippa columbiae
- Flora of North America: Rorippa columbiae
- Washington Burke Museum
- Rorippa columbiae — U.C. Photo gallery
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