Arctostaphylos purissima |
Arctostaphylos nevadensis |
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La Purisima manzanita, La Purissima manzanita |
pine mat manzanita |
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Habit | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. | Shrubs, prostrate or mound-forming, 0.1–0.5 m; burl absent or basal, sometimes epicormic; twigs sparsely short-hairy. | ||||
Leaves | petiole to 2 mm; blade bright green, shiny, orbiculate-ovate to ± orbiculate, 1–2.5 × 1–2 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous. |
petiole 3–7 mm; blade bright green, shiny, obovate or oblanceolate, 1–3 × 1–1.5 cm, base cuneate, margins entire, plane, surfaces smooth, puberulent, glabrescent. |
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Inflorescences | racemes, simple or 1–2-branched; immature inflorescence pendent, (branches dense, concealed by bracts), axis 0.5–1 cm, 1+ mm diam., densely short-hairy with longer hairs; bracts not appressed, (overlapping), leaflike, ovate to lanceolate-ovate, 5–8 mm, apex acute, surfaces glabrous. |
racemes, simple or 1-branched; immature inflorescence pendent, (branches congested, globose), axis 0.5–1 cm, 1+ mm diam., sparsely short-hairy; bracts not appressed, (green), scalelike, linear or linear-lanceolate, mostly 2–3 mm (some near base leaflike, 5–10 mm), apex acuminate, mucronate, surfaces glabrous or sparsely hairy, rarely finely glandular-hairy. |
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Pedicels | 3–5 mm, sparsely hairy or glabrous. |
3–5 mm, glabrous. |
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Flowers | corolla white, conic to urceolate; ovary glabrous. |
corolla white, urceolate; ovary glabrous. |
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Fruits | depressed-globose, 5–8 mm diam., glabrous. |
(dark brown), globose, 6–8 mm diam., glabrous. |
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Stones | distinct. |
distinct. |
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2n | = 26. |
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Arctostaphylos purissima |
Arctostaphylos nevadensis |
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Phenology | Flowering winter–early spring. | |||||
Habitat | Maritime chaparral on deep, sandy soils | |||||
Elevation | 0-100 m (0-300 ft) | |||||
Distribution |
CA
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CA; NV; OR; WA
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Discussion | Of conservation concern. Arctostaphylos purissima is known from hills and mesas near the coast (Burton Mesa) in Santa Barbara County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 8, p. 434. | FNA vol. 8, p. 435. | ||||
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | P. V. Wells: Madroño 19: 195. 1968 , | A. Gray: in A. Gray et al., Syn. Fl. N. Amer. 2: 27. 1878 , | ||||
Web links |