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

31. Arctostaphylos confertiflora Eastwood, Leafl. W. Bot. 1: 122. 1934.

Santa Rosa Island manzanita

Arctostaphylos subcordata Eastwood var. confertiflora (Eastwood) Munz

Shrubs, erect, prostrate, or mound-forming, 0.1-2 m; burl absent; twigs densely short-hairy with long, white, glandular hairs. Leaves (overlapping); petiole 4-10 mm; blade light green, dull, ovate to elliptic, 4-6 × 2-3 cm, base cuneate to ± rounded, margins entire, cupped, surfaces ± papillate, finely scabrous, glandular-puberulent, ± glandular-hairy proximally. Inflorescences panicles, 3-5-branched; immature inflorescence pendent, branches spreading, axis 1.5-2 cm, 1+ mm diam., densely short-hairy with long, white, glandular hairs; bracts not appressed, (crowded), (± densely overlapping near tips), (green), leaflike, ovate to oblanceolate, 8-18 mm, apex acute, surfaces finely glandular-hairy. Pedicels 3-5 mm, finely glandular-hairy. Flowers: corolla white, conic to urceolate; ovary densely white-hairy, sparsely glandular. Fruits depressed-globose, 8-11 mm diam., sparsely hairy. Stones distinct. 2n = 26.

Flowering winter-early spring. Island chaparral, open, closed-cone conifer forests; of conservation concern; 0-500 m; Calif.

Arctostaphylos confertiflora is found on Santa Rosa Island.


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