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Arctostaphylos nissenana
Merriam
Family:
Ericaceae
Eldorado Manzanita
FNA
Resources
V. Thomas Parker, Michael C. Vasey, Jon E. Keeley in Flora of North America (vol. 8)
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.
2
n
= 26.
Flowering winter-early spring. Shallow shale soils in chaparral and foothill woodlands; of conservation concern; 500-1200 m; Calif.
Arctostaphylos nissenana
occurs in the western Sierra Nevada in El Dorado, Placer, and Tuolumne counties.
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This project made possible by National Science Foundation Awards
1601697
,
1600981
,
1601393
,
1600976
,
1601429
,
1601101
,
1601503
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