Ceanothus arboreus Greene, Bull. Calif. Acad. Sci. 2: 144 (1886) (syn: Ceanothus arboreus var. glaber Jeps.; Ceanothus sorediatus W. S. Lyon);
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USA (California) as per Catalogue of Life;
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Ceanothus arboreus from California-GS2401202
2 images.
Ceanothus arboreus Greene
Island ceanothus
Shrub native to California, with glossy leaves with felt beneath, blue flowers
Photographed from San Francisco Botanical Garden, California, 16-7-2008
References: POWO Catalogue of Life The Plant List Ver.1.1 Wikipedia
https://calscape.org/Ceanothus-arboreus-(Island-Ceanothus)?srchcr=sc5d38ee98c5c65
https://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=1764
https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=18428