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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Cardamine oligosperma

Cardamine oligosperma Nutt.

Idaho Bittercress, Little Western Bitter Cress, Little Western Bittercress

Brassicaceae (Mustard family)



USDA Native Status: L48 (N), AK (N), CAN (N)


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Plant Characteristics

Duration: Annual , Perennial , Biennial
Habit: Herb
Size Notes: Up to about 16 inches tall.

Bloom Information

Bloom Color: White
Bloom Time: Feb , Mar , Apr , May , Jun , Jul


USA: AK , CA , CO , ID , MT , NV , NY , OR , UT , WA , WY
Canada: AB , BC , NT , YT
Native Habitat: Stream banks, shady banks, creek bottoms, lakeshores, meadows, moist areas, wooded slopes.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 30 - Calflora (2018) Calflora
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Cardamine oligosperma in USDA Plants
FNA: Find Cardamine oligosperma in the Flora of North America (if available)
Google: Search Google for Cardamine oligosperma


Record Modified: 2020-10-27
Research By: CBR

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