[The Jacob's Ladders and Polemoniums of the Cascade Mountains of Oregon and Washington]

Western Jacob's Ladder, Western Polemonium

Polemonium occidentale

Synonyms: Polemonium caeruleum ssp. amygdalium, Polemonium caeruleum ssp. occidentale, Polemonium caeruleum var. pterospermum, Polemonium helleri, Polemonium intermedium, Polemonium occidentale ssp. amygdalium, Polemonium occidentale ssp. occidentale, Polemonium occidentale ssp. typicum

Flowers of Synonyms: Polemonium caeruleum ssp. amygdalium, Polemonium caeruleum ssp. occidentale, Polemonium caeruleum var. pterospermum, Polemonium helleri, Polemonium intermedium, Polemonium occidentale ssp. amygdalium, Polemonium occidentale ssp. occidentale, Polemonium occidentale ssp. typicum

Close-up image of the flowers of western polemonium as seen at Bottle Prairie, Mt. Hood National Forest.........July 17, 2016.

Synonyms: Polemonium caeruleum ssp. amygdalium, Polemonium caeruleum ssp. occidentale, Polemonium caeruleum var. pterospermum, Polemonium helleri, Polemonium intermedium, Polemonium occidentale ssp. amygdalium, Polemonium occidentale ssp. occidentale, Polemonium occidentale ssp. typicum - Sideview of a flower of Synonyms: Polemonium caeruleum ssp. amygdalium, Polemonium caeruleum ssp. occidentale, Polemonium caeruleum var. pterospermum, Polemonium helleri, Polemonium intermedium, Polemonium occidentale ssp. amygdalium, Polemonium occidentale ssp. occidentale, Polemonium occidentale ssp. typicum

Close-up images of the attractive flowers of western polemonium as seen in meadows at Little Crater Lake in the Mt. Hood National Forest...........August 9, 2006.
Paul Slichter