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

41. Arctostaphylos refugioensis Gankin, Four Seasons. 2(2): 13, fig. p. 13. 1967.

Refugio manzanita

Shrubs, erect, 2-4 m; burl absent; twigs densely short-hairy with longer, gland-tipped hairs. Leaves: petiole to 2 mm; blade glaucous, dull, ovate to oblong-ovate, 3-4.5 × 2-3 cm, base distinctly lobed, auriculate-clasping, margins entire, plane, surfaces smooth, glabrous or midrib ± finely hairy. Inflorescences panicles, 5-10-branched; immature inflorescence pendent, branches spreading (open, loose, with overlapping bracts), axis 2-3 cm, 1+ mm diam., densely short-hairy with longer, gland-tipped hairs; bracts not appressed, leaflike, ovate to wide-elliptic, 4-10 mm, apex acute, surfaces finely glandular-hairy. Pedicels 7-9 mm, finely glandular-hairy. Flowers: corolla white, conic to urceolate; ovary glabrous. Fruits globose, 10-15 mm diam., glabrous. Stones connate into single sphere. 2n = 26.

Flowering winter-early spring. Chaparral; of conservation concern; 400-600 m; Calif.

Arctostaphylos refugioensis is known from one population in Refugio Canyon in Santa Barbara County.


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