Subgenus

Ceanothus (Ceanothus subg. ceanothus)

Ceanothus thyrsiflorus thyrsiflorus. Photo: (c) Vince Scheidt, some rights reserved (CC BY-NC)

Ceanothus is a genus of about 50–60 species of nitrogen-fixing shrubs and small trees in the buckthorn family (Rhamnaceae). Common names for members of this genus are buckbrush, California lilac, soap bush, or just ceanothus. “Ceonothus” comes from a Greek word meaning “spiny plant”, Ancient Greek: κεάνωθος (keanōthos), which was applied by Theophrastus (371–287 BC) to an Old World plant believed to be Cirsium arvense.

— Wikipedia

Subtaxa

Where in Humboldt



Discussion

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