Arctostaphylos osoensis |
Arctostaphylos parryana |
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oso manzanita |
Parry manzanita, Parry's manzanita |
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Habit | Shrubs, erect or mound-forming, 1–4 m; burl absent; bark of older stems persistent, gray, shredded, sometimes red, smooth; twigs sparsely short-hairy. | Shrubs, prostrate, erect, or mound-forming, 0.5–2 m; burl present or absent; twigs sparsely to moderately short-hairy. | ||||||||
Leaves | petiole to 2 mm; blade dark green, ± shiny, ovate to orbiculate-ovate, 1.5–3 × 1.5–2.5 cm, base deeply lobed, (clasping), margins entire, plane, surfaces smooth, sparsely short-hairy or glabrous. |
petiole 5–10 mm; blade bright green or gray-glaucous, usually shiny, sometimes dull, oblong-ovate to wide-elliptic, 2.5–5 × 1.5–2.5 cm, base obtuse to truncate, margins entire, plane, surfaces smooth, glabrous or sparsely puberulent. |
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Inflorescences | racemes, simple or 1-branched; immature inflorescence pendent, (branches compact, framed by bracts), axis 0.5–1 cm, 1+ mm diam., sparsely short-hairy; bracts not appressed, leaflike, lanceolate to ovate, 4–8 mm, apex acute, surfaces glabrous. |
panicles, 3–5-branched; immature inflorescence pendent, branches spreading, axis 0.5–1.5 cm, 1+ mm diam., sparsely to moderately short-hairy; bracts ± appressed, scalelike, deltate to wide-ovate, 2–4 mm, apex mucronate, surfaces glabrous. |
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Pedicels | 8–9 mm, glabrous. |
4–9 mm, glabrous. |
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Flowers | corolla white, urceolate; ovary glabrous. |
corolla white, conic to urceolate; ovary glabrous. |
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Fruits | depressed-globose, 5–8 mm diam., glabrous. |
globose, 7–10 mm diam., glabrous. |
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Stones | distinct. |
connate into single sphere. |
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2n | = 26. |
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Arctostaphylos osoensis |
Arctostaphylos parryana |
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Phenology | Flowering winter–early spring. | |||||||||
Habitat | Maritime chaparral on volcanic uplands | |||||||||
Elevation | 0-200 m (0-700 ft) | |||||||||
Distribution |
CA |
CA
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Discussion | Of conservation concern. Arctostaphylos osoensis is found in the volcanic hills east of Morro Bay, San Luis Obispo County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 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. 420. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Name authority | P. V. Wells: Four Seasons 9(2): 45. 1992 , | Lemmon: Pittonia 2: 68. 1890 , | ||||||||
Web links |