Arctostaphylos nissenana


Proc. Biol. Soc. Wash. 31: 102, plates 4, 5. 1918 ,.

Common names: Nissenan manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 425. Mentioned on page 406, 413.

Shrubs, erect or mound-forming, 0.2–1.5 m; burl absent; bark on older stems persistent, gray, shredded; twigs short soft-hairy. Leaves: petiole 1–3 mm; blade gray-glaucous, dull, elliptic to oblong-elliptic, 1–2 × 0.8–1.5 cm, base cuneate to rounded, margins entire, plane, surfaces smooth, sparsely appressed-puberulent, glabrescent. Inflorescences racemes, simple or 1-branched; immature inflorescence pendent, (framed by leafy bracts), axis 0.2–0.5 cm, 1+ mm diam., short soft-hairy; bracts not appressed, narrowly leaflike, lanceolate, 3–5 mm, apex acute, surfaces glabrous or sparsely hairy. Pedicels 5–7 mm, sparsely hairy or glabrous. Flowers: corolla white, urceolate; ovary white-hairy. Fruits subglobose, 3–4 mm diam., glabrous. Stones distinct. 2n = 26.

Phenology: Flowering winter–early spring.
Habitat: Shallow shale soils in chaparral and foothill woodlands
Elevation: 500-1200 m


Of conservation concern.

Arctostaphylos nissenana occurs in the western Sierra Nevada in El Dorado, Placer, and Tuolumne counties.

Selected References


Lower Taxa

... more about "Arctostaphylos nissenana"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Merriam +
Nissenan manzanita +
500-1200 m +
Shallow shale soils in chaparral and foothill woodlands +
Flowering winter–early spring. +
Proc. Biol. Soc. Wash. +
Endemic +  and Conservation concern +
Undefined tribe Arbuteae +
Arctostaphylos nissenana +
Arctostaphylos +
species +