Arctostaphylos auriculata |
Arctostaphylos gabilanensis |
|
---|---|---|
Mount Diablo manzanita, Mt. Diablo manzanita |
Gabilan manzanita, Gabilan Mountains manzanita |
|
Habit | Shrubs, erect, 1–4.5 m; burl absent; twigs densely white-hairy with long, white hairs. | Shrubs or trees, erect, 1–5 m; burl absent; twigs sparsely short-hairy with sessile glands among 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 1–4 mm; blade gray-glaucous, dull, ovate, 1.5–3.5 × 1.1–2.4 cm, base distinctly lobed, auriculate-clasping, margins entire, plane, surfaces smooth, 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. |
panicles, 1–4-branched; immature inflorescence pendent, branches spreading, axis 1–3 cm, 1+ mm diam., sparsely short-hairy with sessile glands among hairs; bracts not appressed, (spreading), scalelike (lowermost leaflike), deltate, 3–5 mm, (fleshy), apex mucronate, surfaces hairy. |
Pedicels | 4–10 mm, tomentose. |
8–10 mm, hairy or glabrous. |
Flowers | corolla white to pink, conic; ovary densely white-hairy. |
corolla white to pink, conic to urceolate; ovary glabrous, (not viscid). |
Fruits | depressed-globose, 5–10 mm diam., short white-hairy, glabrescent. |
globose, 10–15 mm diam., glabrous, (not viscid). |
Stones | distinct. |
connate into single sphere. |
2n | = 26. |
= 26. |
Arctostaphylos auriculata |
Arctostaphylos gabilanensis |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Chaparral, open, closed-cone conifer forests | Chaparral on decomposing granites |
Elevation | 300-500 m (1000-1600 ft) | 300-700 m (1000-2300 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 gabilanensis is known from two disjunct populations in the Gabilan Mountains, San Benito and Monterey counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 430. | FNA vol. 8, p. 431. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | Eastwood: Bull. Torrey Bot. Club 32: 202. 1905 , | V. T. Parker & M. C. Vasey: Madroño 51: 322, fig. 1. 2004 , |
Web links |