Arctostaphylos pacifica |
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Pacific manzanita |
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Habit | Shrubs, prostrate or mound-forming, 0.1–0.3 m; burl present, sometimes epicormic; twigs short-hairy. |
Leaves | petiole 2–4 mm; blade light green abaxially, dark green adaxially, shiny, elliptic, 1–2 × 0.5–1 cm, base cuneate, margins serrulate, plane, surfaces smooth, sparsely hairy. |
Inflorescences | racemes, (simple or 1-branched); immature inflorescence pendent, (congested), axis 0.5–1 cm, 1+ mm diam., short-hairy; bracts appressed, scalelike, awl-like, 0.5–1 mm, apex acute, glabrous. |
Pedicels | 3–5 mm, glabrous. |
Flowers | corolla white, urceolate; ovary glabrous. |
Fruits | (reddish), globose, 6–8 mm diam., glabrous. |
Stones | distinct. |
Arctostaphylos pacifica |
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Phenology | Flowering winter–early spring. |
Habitat | Sandstone outcrops |
Elevation | 300 m (1000 ft) |
Distribution |
CA
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Discussion | Of conservation concern. A distinctive species with an uncertain origin, Arctostaphylos pacifica has often been relegated to hybrid status and ignored; it displays a number of unique characters not found in any other species. It is found only at one location, San Bruno Mountain, the northern part of the Santa Cruz Mountains, San Mateo County. The relationships of this species need additional study. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 415. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | |
Name authority | Roof: Leafl. W. Bot. 9: 217. 1962 , |
Web links |