Arctostaphylos purissima |
Arctostaphylos auriculata |
|
---|---|---|
La Purisima manzanita, La Purissima manzanita |
Mount Diablo manzanita, Mt. Diablo manzanita |
|
Habit | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. | Shrubs, erect, 1–4.5 m; burl absent; twigs densely white-hairy with long, white hairs. |
Leaves | petiole to 2 mm; blade bright green, shiny, orbiculate-ovate to ± orbiculate, 1–2.5 × 1–2 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous. |
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 | racemes, simple or 1–2-branched; immature inflorescence pendent, (branches dense, concealed by bracts), axis 0.5–1 cm, 1+ mm diam., densely short-hairy with longer hairs; bracts not appressed, (overlapping), leaflike, ovate to lanceolate-ovate, 5–8 mm, apex acute, surfaces glabrous. |
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 | 3–5 mm, sparsely hairy or glabrous. |
4–10 mm, tomentose. |
Flowers | corolla white, conic to urceolate; ovary glabrous. |
corolla white to pink, conic; ovary densely white-hairy. |
Fruits | depressed-globose, 5–8 mm diam., glabrous. |
depressed-globose, 5–10 mm diam., short white-hairy, glabrescent. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos purissima |
Arctostaphylos auriculata |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on deep, sandy soils | Chaparral, open, closed-cone conifer forests |
Elevation | 0-100 m (0-300 ft) | 300-500 m (1000-1600 ft) |
Distribution |
CA
|
CA |
Discussion | Of conservation concern. Arctostaphylos purissima is known from hills and mesas near the coast (Burton Mesa) in Santa Barbara County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. 434. | FNA vol. 8, p. 430. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | P. V. Wells: Madroño 19: 195. 1968 , | Eastwood: Bull. Torrey Bot. Club 32: 202. 1905 , |
Web links |