Ceanothus Genus --- buckthorn family

Fendler's buckbrush (Ceanothus fendleri) -- in May and June -- Well Gulch Nature Trail, Lory State Park, CO   white and cream   

Jersey tea (Ceanothus herbaceus) -- in July -- Mill Creek Link Trail, Lory State Park, CO     white and cream  

deerbrush (Ceanothus integerrimus) -- in July -- Lassen Volcanic National Park, CA             blue and purple

blueblossom (Ceanothus thyrsiflorus) -- in July -- Klamath Falls to Ashland (Rt. 66), OR       blue & purple 

snowbrush ceanothus (Ceanothus velutinus) -- in June -- Glacier National Park, MT          white and cream    

snowbrush ceanothus (Ceanothus velutinus) -- in July -- Cub Lake Trail, Rocky Mountain National Park, CO