Arctostaphylos auriculata |
Arctostaphylos malloryi |
|
---|---|---|
Mount Diablo manzanita, Mt. Diablo manzanita |
Balaklala manzanita, Mallory's manzanita |
|
Habit | Shrubs, erect, 1–4.5 m; burl absent; twigs densely white-hairy with long, white hairs. | Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy. |
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 5–10 mm; blade glaucous, dull, orbiculate to ovate, 2–3 × 1.5–2.5 cm, base rounded, truncate, or ± lobed, margins entire, plane, surfaces smooth, gray-canescent or densely white-tomentose, 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, 2–5-branched; immature inflorescence pendent, branches spreading or ascending, axis 1–2 cm, 1+ mm diam., sparsely short-hairy, viscid glandular-hairy; bracts appressed, scalelike, linear-lanceolate, 3–5 mm, apex acute, surfaces canescent. |
Pedicels | 4–10 mm, tomentose. |
6–9 mm, finely glandular-hairy. |
Flowers | corolla white to pink, conic; ovary densely white-hairy. |
corolla white, conic to urceolate; ovary densely white-hairy. |
Fruits | depressed-globose, 5–10 mm diam., short white-hairy, glabrescent. |
depressed-globose, 7–9 mm diam., hairy or glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos auriculata |
Arctostaphylos malloryi |
|
Phenology | Flowering winter–early spring. | Flowering winter–late spring. |
Habitat | Chaparral, open, closed-cone conifer forests | Chaparral, open forests |
Elevation | 300-500 m (1000-1600 ft) | 200-1200 m (700-3900 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 malloryi occurs in disjunct populations on volcanic soils in Colusa, Shasta, and Sonoma counties in the North Coast Ranges. It possibly originated as a hybrid between A. canescens and A. viscida, and merits further study. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 430. | FNA vol. 8, p. 430. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. canescens subsp. malloryi | |
Name authority | Eastwood: Bull. Torrey Bot. Club 32: 202. 1905 , | (W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 , |
Web links |