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

12. Arctostaphylos stanfordiana Parry, Bull. Calif. Acad. Sci. 2: 493. 1887.

Stanford’s manzanita Stanford’s manzanita

Shrubs, erect or prostrate to decumbent, mat- or mound-forming, 0.1-3 m; burl absent; twigs usually glabrous, sometimes sparsely short-hairy, hairs sometimes glandular. Leaves: petiole 4-12 mm; blade bright green, shiny or slightly glaucous, elliptic, oblong, or oblanceolate, 3-5 × 1.5-2.5 cm, base cuneate, (not clasping), margins entire, plane, surfaces smooth, glabrous or, rarely, finely glandular-puberulent. Inflorescences panicles, 3-5-branched; immature inflorescence ascendent, branches wide-spreading, often ascending to erect, axis 2-2.5 cm, to 1 mm diam., usually glabrous, sparsely hairy, or sometimes sparsely glandular-hairy; bracts tightly appressed, scalelike, ovate to deltate, 1-1.5 mm (± equaling buds), apex acuminate, surfaces usually sparsely hairy or sometimes sparsely glandular-hairy; (buds scattered along inflorescence axis, round, appearing as "beads"). Pedicels 5-10 mm, glabrous. Flowers: corolla white to pink, urceolate; ovary glabrous. Fruits subglobose, 6-8 mm diam., glabrous. Stones distinct.

Subspecies 3 (3 in the flora): California.


1 Twigs, inflorescence axes, and bracts short glandular-hairy.   12c Arctostaphylos stanfordiana subsp. raichei
+ Twigs, inflorescence axes, and bracts glabrous or sparsely short-hairy   (2)
       
2 (1) Plants erect, 1-3 m; interior n Coast Ranges   12a Arctostaphylos stanfordiana subsp. stanfordiana
+ Plants prostrate to decumbent, 0.1-1 m; Sonoma County.   12b Arctostaphylos stanfordiana subsp. decumbens

Lower Taxa


 

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