[Larkspurs: The Genus Delphinium West of the Cascade Mountains of Oregon and Washington]

Cow Poison, Cow-poison , Poison Larkspur

Delphinium trolliifolium

Flower of Poison Larkspur, Cow Poison, Cow-poison: Delphinium trolliifolium

Close-up sideview of the flower of poison larkspur as seen in open forest on Saddle Mountain in the Coast Range of northwestern Oregon..........June 14, 2009.

Poison Larkspur, Cow Poison, Cow-poison: Delphinium trolliifolium - Poison Larkspur, Cow Poison, Cow-poison: Delphinium trolliifolium

Poison larkspur blooming at left in the webmaster's woodland garden in Gresham, Oregon.......April 27, 2020. The photo at right shows poison larkspur with flower buds readying to open along trails at Lewisville Regional Park (Clark County Parks) north of Battle Ground, WA......April 8, 2021.
Paul Slichter