Arctostaphylos glauca
Arctostaphylos stanfordiana
big berry manzanita
Stanford's manzanita
petiole 7–15 mm;
blade white-glaucous, dull, oblong-ovate to ± orbiculate, 2.5–5 × 2–4 cm, base rounded, truncate, or slightly lobed, margins entire, plane, surfaces smooth, glabrous.
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.
panicles, 4–8-branched;
immature inflorescence pendent, branches spreading, axis 2–3 cm, 1+ mm diam., usually glabrous, sometimes short-hairy or glandular-hairy;
bracts not appressed, (spreading), scalelike, deltate, 3–6 mm, (fleshy), apex mucronate, surfaces glabrous; (buds exposed).
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”).
8–10 mm, finely glandular-hairy.
5–10 mm, glabrous.
corolla white, conic to urceolate;
ovary densely glandular-viscid.
corolla white to pink, urceolate;
ovary glabrous.
globose, 12–15 mm diam., glabrous, (viscid).
subglobose, 6–8 mm diam., glabrous.
connate into single sphere.
distinct.
= 26.
Arctostaphylos glauca
Arctostaphylos stanfordiana
Arctostaphylos glauca is widespread, occurring from Mount Diablo in central California through the southern Coast Ranges, east through the Transverse Ranges into the desert, and south in the Peninsular Ranges into northern Baja California, usually in drier interior ranges. It is distinctive throughout its range; however, some populations have nonglandular twig puberulence and others are stipitate-glandular, often mixed in with individuals that are typically glabrous. Arctostaphylos glauca can be a component of chaparral and can also be found in woodlands and at the edges of grasslands.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies 3 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Twigs, inflorescence axes, and bracts short glandular-hairy. | subsp. raichei |
1. Twigs, inflorescence axes, and bracts glabrous or sparsely short-hairy | → 2 |
2. Plants erect, 1-3 m; interior n Coast Ranges | subsp. stanfordiana |
2. Plants prostrate to decumbent, 0.1-1 m; Sonoma County. | subsp. decumbens |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
OR
Flora NW
PNW Herbaria
