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FNA | Family List | FNA Vol. 8 | Ericaceae | Arctostaphylos

33b. Arctostaphylos canescens Eastwood subsp. sonomensis (Eastwood) P. V. Wells, MadroƱo. 35: 333. 1989.

Sonoma manzanita

Arctostaphylos sonomensis Eastwood, Leafl. W. Bot. 1: 78. 1933; A. canescens var. sonomensis (Eastwood) J. E. Adams ex McMinn

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

Flowering early winter-late spring. Chaparral, open forests; 400-1700 m; Calif.

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.


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