Arctostaphylos canescens subsp. sonomensis

(Eastwood) P. V. Wells

Madroño 35: 333. 1989 ,.

Common names: Sonoma manzanita
Basionym: Arctostaphylos sonomensis Eastwood Leafl. W. Bot. 1: 78. 1933
Synonyms: Arctostaphylos canescens var. sonomensis (Eastwood) J. E. Adams ex McMinn
Treatment appears in FNA Volume 8. Treatment on page 429.

Twigs softly white-hairy and glandular-hairy. Immature inflorescence axes glandular-hairy. Pedicels glandular-hairy. Fruits glandular-hairy.

Phenology: Flowering early winter–late spring.
Habitat: Chaparral, open forests
Elevation: 400-1700 m


Subspecies sonomensis is scattered in the North Coast Ranges from Santa Cruz County northward to Humboldt County, often in mixed populations with subsp. canescens. It was originally thought to be a rare subspecies; more intensive investigation may reveal individuals in populations throughout the range of the species.

Selected References


Lower Taxa

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
(Eastwood) P. V. Wells +
Arctostaphylos sonomensis +
Sonoma manzanita +
400-1700 m +
Chaparral, open forests +
Flowering early winter–late spring. +
Arctostaphylos canescens var. sonomensis +
Arctostaphylos canescens subsp. sonomensis +
Arctostaphylos canescens +
subspecies +