Arctostaphylos auriculata |
Arctostaphylos hooveri |
|
---|---|---|
Mount Diablo manzanita, Mt. Diablo manzanita |
Hoover's manzanita |
|
Habit | Shrubs, erect, 1–4.5 m; burl absent; twigs densely white-hairy with long, white hairs. | Shrubs or trees, erect, 2–8 m; burl absent; twigs densely fine-hairy, with long, white, gland-tipped 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. |
petiole 3–6 mm; blade glaucous, dull, oblong to ovate, 4–6 × 2–3 cm, base lobed, auriculate, (not clasping), margins entire, plane, surfaces papillate, scabrous, glandular-hairy, ± 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. |
panicles, 4–6-branched; immature inflorescence pendent, (concealed by bracts), axis 1.5–2.5 cm, 1+ mm diam., densely fine-hairy with long, white, gland-tipped hairs; bracts not appressed, leaflike, lanceolate, 8–20 mm, apex acuminate, surfaces glandular-hairy. |
Pedicels | 4–10 mm, tomentose. |
8–15 mm, finely glandular-hairy. |
Flowers | corolla white to pink, conic; ovary densely white-hairy. |
corolla white, conic to urceolate; ovary finely glandular-hairy. |
Fruits | depressed-globose, 5–10 mm diam., short white-hairy, glabrescent. |
depressed-globose, 6–10 mm diam., glandular-hairy, (viscid). |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos auriculata |
Arctostaphylos hooveri |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Chaparral, open, closed-cone conifer forests | Chaparral, open conifer forests |
Elevation | 300-500 m (1000-1600 ft) | 900-1200 m (3000-3900 ft) |
Distribution |
CA |
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.) |
Of conservation concern. Arctostaphylos hooveri is known from the northern Santa Lucia Mountains in Monterey County. Populations are associated with openings in yellow pine forests and patches of chaparral. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 430. | FNA vol. 8, p. 433. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | Eastwood: Bull. Torrey Bot. Club 32: 202. 1905 , | P. V. Wells: Leafl. W. Bot. 9: 152. 1961 , |
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