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

62. Arctostaphylos glandulosa Eastwood, Proc. Calif. Acad. Sci., ser. 3. 1: 82. 1897.

Eastwood’s manzanita

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.

Subspecies 10 (8 in the flora): w United States, nw Mexico.

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)
+ Twigs, bracts, and immature inflorescence axes not glandular-hairy   (4)
2 (1) Leaf blades strongly white-glaucous.   62g Arctostaphylos glandulosa subsp. leucophylla
+ Leaf blades green to gray-green, not glaucous to moderately glaucous   (3)
3 (2) Twigs glandular-hairy; immature inflores-cences usually glandular-hairy.   62a Arctostaphylos glandulosa subsp. glandulosa
+ Twigs not glandular-hairy; immature inflorescences glandular-hairy; (interior and eastern side of Santa Lucia Mountains).   62f Arctostaphylos glandulosa subsp. howellii
4 (1) Twigs short-hairy and with longer, white hairs.   62h Arctostaphylos glandulosa subsp. mollis
+ Twigs short-hairy, not glandular-hairy   (5)
5 (4) Leaf blades strongly white-glaucous.   62b Arctostaphylos glandulosa subsp. adamsii
+ Leaf blades dark green to moderately gray-green   (6)
6 (5) Stones mostly connate into single or weakly connate sphere.   62e Arctostaphylos glandulosa subsp. gabrielensis
+ Stones usually distinct   (7)
7 (6) Leaf blades dark green (margins often reddish); fruits markedly flattened into depressed-globose shape.   62c Arctostaphylos glandulosa subsp. crassifolia
+ Leaf blades green or gray-green; fruits only slightly flattened into depressed-globose shape.   62d Arctostaphylos glandulosa subsp. cushingiana

Lower Taxa


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