[Bittercress and Toothworts: The Genus Cardamine in the Cascade Mountains of Oregon and Washington]

Few-seed Bittercress, Few-seeded Bittercress, Little Western Bittercress, Siberian bittercress, Umbellate Bittercress

Cardamine oligosperma

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

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

What appears to be little western bittercress as seen along the Lewis River and Lewis River Trail #31, Gifford Pinchot National Forest........May 3, 2015.

Flowers and fruits of Few-seed Bittercress, Few-seeded Bittercress, Little Western Bittercress, Siberian bittercress, Umbellate Bittercress: Cardamine oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine oligosperma var. oligosperma, 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.

Dorsal leaf surface of Few-seed Bittercress, Few-seeded Bittercress, Little Western Bittercress, Siberian bittercress, Umbellate Bittercress: Cardamine oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine oligosperma var. oligosperma, Cardamine umbellata, Cardamine unijuga) - Ventral leaf surface of Few-seed Bittercress, Few-seeded Bittercress, Little Western Bittercress, Siberian bittercress, Umbellate Bittercress: Cardamine oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine oligosperma var. oligosperma, Cardamine umbellata, Cardamine unijuga) - Seed pod of Few-seed Bittercress, Few-seeded Bittercress, Little Western Bittercress, Siberian bittercress, Umbellate Bittercress: Cardamine oligosperma (Synonyms: Cardamine oligosperma var. kamtschatica, Cardamine oligosperma var. lucens, Cardamine oligosperma var. oligosperma, Cardamine umbellata, Cardamine unijuga)

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.

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

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

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

Little western bittercress beginning to bloom along the lower sections of the Cherry Orchard Trail.......February 9, 2013.
Paul Slichter