Arctostaphylos auriculata

Eastwood

Bull. Torrey Bot. Club 32: 202. 1905 ,.

Common names: Mount Diablo manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 430. Mentioned on page 413, 431.

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.


Phenology: Flowering winter–early spring.
Habitat: Chaparral, open, closed-cone conifer forests
Elevation: 300-500 m

Discussion

Of conservation concern.

Arctostaphylos auriculata is found on the western slopes of Mount Diablo in Contra Costa County.

Selected References

None.

Lower Taxa

None.
... more about "Arctostaphylos auriculata"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Eastwood +
Mount Diablo manzanita +
300-500 m +
Chaparral, open, closed-cone conifer forests +
Flowering winter–early spring. +
Bull. Torrey Bot. Club +
Endemic +  and Conservation concern +
Undefined tribe Arbuteae +
Arctostaphylos auriculata +
Arctostaphylos +
species +