Arctostaphylos nissenana

Merriam

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

Discussion

Of conservation concern.

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

Selected References

None.

Lower Taxa

None.

... 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 +