[Bladderpods and Twinpods: The Genus Physaria in the Columbia River Gorge of Oregon and Washington]

Anderson's Bladderpod, Anderson's Twinpod

Physaria andersonii

Previously identified as Physaria oregana

Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii

Newly named Anderson's bladderpod as seen on caliche soils near Arlington, Oregon in the eastern Columbia River Gorge..............May 12, 2012.

Close-up image of the calyx, corolla and upper stem leaves of Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii - Close-up sideview of the inflorescence and upper stem leaves of Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii

Close-up image of the flowers of Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii - Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii with the basal leaves of blazing star: Mentzelia laevicaulis

Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii - Inflorescence and upper stem leaves of Anderson's Bladderpod, Anderson's Twinpod: Physaria andersonii

Additional images of the newly named Anderson's bladderpod as seen on caliche soils near Arlington, Oregon in the eastern Columbia River Gorge..............May 12, 2012.

For comparison, the following series of photos represent Oregon twinpod (Physaria oregona):

Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana)

Oregon twinpod as seen in southern Asotin County, WA...................May 24, 2010.

Flower of Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana) - Seed pod of Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana) - Basal leaves of Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana)

Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana) - Basal leaves of young Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana)

Basal leaves and seed pods of - Oregon Twinpod: Physaria oregona (Synonym: Physaria oregana)

Additional close-up views of Oregon twinpod as seen in southern Asotin County, WA...................May 24, 2010. Note the short style on the thin fruits.

Paul Slichter