Arctostaphylos auriculata |
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Mount Diablo manzanita, Mt. Diablo manzanita |
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Habit | Shrubs, erect, 1–4.5 m; burl absent; twigs densely white-hairy with long, white hairs. |
Leaves | petiole to 2 mm; blade whitish gray, dull, oblong-ovate to orbiculate-ovate, 1.5–4.5 × 1.5–3 cm, base distinctly lobed, auriculate-clasping, margins entire, plane, surfaces smooth, gray-canescent, glabrescent. |
Inflorescences | panicles, 3–5-branched; immature inflorescence pendent, (branches crowded, ± obscured by bracts), axis 1–1.5 cm, 1+ mm diam., densely white-hairy with long, white hairs; bracts somewhat appressed, leaflike, ovate to lanceolate-ovate, 5–15 mm, apex acute, surfaces canescent. |
Pedicels | 4–10 mm, tomentose. |
Flowers | corolla white to pink, conic; ovary densely white-hairy. |
Fruits | depressed-globose, 5–10 mm diam., short white-hairy, glabrescent. |
Stones | distinct. |
2n | = 26. |
Arctostaphylos auriculata |
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Phenology | Flowering winter–early spring. |
Habitat | Chaparral, open, closed-cone conifer forests |
Elevation | 300-500 m (1000-1600 ft) |
Distribution |
CA |
Discussion | Of conservation concern. Arctostaphylos auriculata is found on the western slopes of Mount Diablo in Contra Costa County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 430. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | |
Name authority | Eastwood: Bull. Torrey Bot. Club 32: 202. 1905 , |
Web links |