Lupunis chamissonis
Beach blue lupine, a.k.a. bush dune lupine, Lupinus chamissonis. This shrub is endemic to California and is the larval food plant of Icaricia icarioides moroensis, a blue subspecies of Boisduval's blue in the Morro Bay area.
Lupunis chamissonis
A closer look. These photos were taken in Baywood-Los Osos in late May, 2023.

©Dennis Walker