Proc. Calif. Acad. Sci., ser. 3, 1: 82. 1897 ,
Shrubs, erect or mound-forming, 1–3 m; burl present; twigs tomentose to short-hairy, with eglandular hairs or with long, clear, pink or dark, glandular hairs. Leaves: petiole 5–10 mm; blade bright green, slightly glaucous to strongly gray-glaucous, shiny or dull, elliptic to ovate, 2–4.5 × 1–2.5 cm, base cuneate to rounded, sometimes ± lobed or truncate, margins entire or toothed, plane, surfaces papillate, scabrous or smooth, glabrous or glandular-puberulent to -hairy, puberulent, or finely tomentose, sometimes glabrescent; (abaxial surface sometimes with more stomata than adaxial surface). Inflorescences panicles, 3–6-branched; immature inflorescence pendent, (branches crowded, not concealed by bracts), axis 1–3 cm, 1+ mm diam., short-hairy to hairy, with or without glandular hairs; bracts not appressed, variable, from scalelike and awl-like to leaflike and deltate, lanceolate, or broadly lanceolate (at least at base), 3–10 mm, apex acute, surfaces hairy or finely glandular-hairy. Pedicels 3–10 mm, sparsely hairy to finely glandular-hairy. Flowers: corolla white to pink, conic to urceolate; ovary densely white-hairy, sometimes glandular. Fruits slightly (or markedly) depressed-globose, 6–10 mm diam., glabrous or finely glandular-hairy, (viscid). Stones usually mostly distinct, sometimes connate.
Calif., Oreg., nw Mexico.
Subspecies 10 (8 in the flora).
Arctostaphylos glandulosa occurs in the California Floristic Province from southern Oregon to northern Baja California within the Coast, Transverse, and Peninsular ranges.
|1||Twigs, bracts, and/or immature inflorescence axes glandular-hairy||> 2|
|1||Twigs, bracts, and immature inflorescence axes not glandular-hairy||> 4|
|2||Leaf blades strongly white-glaucous.||Arctostaphylos glandulosa subsp. leucophylla|
|2||Leaf blades green to gray-green, not glaucous to moderately glaucous||> 3|
|3||Twigs glandular-hairy; immature inflorescences usually glandular-hairy.||Arctostaphylos glandulosa subsp. glandulosa|
|3||Twigs not glandular-hairy; immature inflorescences glandular-hairy; (interior and eastern side of Santa Lucia Mountains).||Arctostaphylos glandulosa subsp. howellii|
|4||Twigs short-hairy and with longer, white hairs.||Arctostaphylos glandulosa subsp. mollis|
|4||Twigs short-hairy, not glandular-hairy||> 5|
|5||Leaf blades strongly white-glaucous.||Arctostaphylos glandulosa subsp. adamsii|
|5||Leaf blades dark green to moderately gray-green||> 6|
|6||Stones mostly connate into single or weakly connate sphere.||Arctostaphylos glandulosa subsp. gabrielensis|
|6||Stones usually distinct||> 7|
|7||Leaf blades dark green (margins often reddish); fruits markedly flattened into depressed-globose shape.||Arctostaphylos glandulosa subsp. crassifolia|
|7||Leaf blades green or gray-green; fruits only slightly flattened into depressed-globose shape.||Arctostaphylos glandulosa subsp. cushingiana|