Bird's Foot Buttercup, Straightbeak Buttercup
Ranunculus orthorhynchus var. orthorhynchus
Synonyms: Ranunculus orthorhynchus ssp. alaschensis, Ranunculus orthorhynchus var. alaschensis, Ranunculus orthorhynchus var. hallii
- 
The shiny yellow inner petals of straightbeak buttercup.
This variety of straightbeak buttercup usually has the reddish petals on their outer surface. Variety platyphyllus typically is yellow on the outer petal surface.
- 
Straightbeak buttercup in bloom at a moist slope along the Pilot Rock Trail within one-half mile of the trailhead, Cascade-Siskiyou National Monument......May 26, 2021.
This photo shows the straight styles which helps give this species its name, straightbeak buttercup.
Paul Slichter