[The Toothworts of the Columbia River Gorge of Oregon and Washington]

Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress

Cardamine oligosperma var. oligosperma

Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine umbellata, Cardamine unijuga

Flowers and fruits of Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma

The erect siliques and several flowers of little western bittercress as seen in the Labyrinth in the central Columbia River Gorge...........April 15, 2010.

Dorsal leaf surface of Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma - Ventral leaf surface of Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma - Seed pod of Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma

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, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine umbellata, Cardamine unijuga) - Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine umbellata, Cardamine unijuga)

Little western bittercress beginning to bloom along the lower sections of the Cherry Orchard Trail...........March 7, 2011.

Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine umbellata, Cardamine unijuga) - Little Western Bittercress, Siberian Bittercress, Umbellate Bittercress: Cardamine oligosperma var. oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine umbellata, Cardamine unijuga)

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.

Paul Slichter