Arctostaphylos purissima |
Arctostaphylos osoensis |
|
---|---|---|
La Purisima manzanita, La Purissima manzanita |
oso manzanita |
|
Habit | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. | Shrubs, erect or mound-forming, 1–4 m; burl absent; bark of older stems persistent, gray, shredded, sometimes red, smooth; 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 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. |
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 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. |
Pedicels | 3–5 mm, sparsely hairy or glabrous. |
8–9 mm, glabrous. |
Flowers | corolla white, conic to urceolate; ovary glabrous. |
corolla white, urceolate; ovary glabrous. |
Fruits | depressed-globose, 5–8 mm diam., glabrous. |
depressed-globose, 5–8 mm diam., glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos purissima |
Arctostaphylos osoensis |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on deep, sandy soils | Maritime chaparral on volcanic uplands |
Elevation | 0-100 m (0-300 ft) | 0-200 m (0-700 ft) |
Distribution |
CA
|
CA |
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.) |
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.) |
Source | FNA vol. 8, p. 434. | FNA vol. 8, p. 434. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | P. V. Wells: Madroño 19: 195. 1968 , | P. V. Wells: Four Seasons 9(2): 45. 1992 , |
Web links |