[Shrubs of the Cascade Mountains of Oregon and Washington]

The Buckthorn Family in the Cascade Mountains of Oregon and Washington

Rhamnaceae

Blue Blossum, Wild Lilac: Ceanothus thyrsiflorus (Synonym: Ceanothus thyrsiflorus)

Blue Blossum: Ceanothus thrysiflorus

Buckbrush, Buckthorn, Deer Brush, Ceanothus, Wild-lilac: The Genus Ceanothus -

Cascara and Buckthorn: The Genus Rhamnus -


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