Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress
Cardamine oligosperma var. oligosperma
Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine umbellata, Cardamine unijuga
The erect siliques and several flowers of little western bittercress as seen in the Labyrinth in the central Columbia River Gorge...........April 15, 2010.
- 
- 
The upper basal leaf surface (left), lower basal leaf surface, and linear silique of little western bittercress as seen in the Labyrinth in the central Columbia River Gorge...........April 15, 2010.
- 
Little western bittercress beginning to bloom along the lower sections of the Cherry Orchard Trail...........March 7, 2011.
- 
Little western bittercress beginning to bloom along the lower sections of the Cherry Orchard Trail...........March 11, 2022.
- 
Little western bittercress beginning to bloom (left) along the lower sections of the Cherry Orchard Trail.........February 9, 2013. The photo at right shows little western bittercress beginning to bloom on wildfire burnt slopes above the Eightmile Creek waterfall near the Crawford Oaks Trailhead, Columbia Hills State Park...........February 23, 2016.
Little western bittercress beginning to bloom with spring whitlow grass (Draba verna) at their base along the lower sections of the Cherry Orchard Trail.........March 16, 2017.
Paul Slichter