Arctostaphylos purissima |
Arctostaphylos pumila |
|
---|---|---|
La Purisima manzanita, La Purissima manzanita |
sand-mat manzanita |
|
Habit | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. | Shrubs, prostrate or mound-forming, 0.1–1 m; burl absent; twigs short gray-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. |
bifacial in stomatal distribution; petiole 2–3 mm; blade dull gray abaxially, dark green, ± shiny adaxially, narrowly obovate to oblanceolate, (convex), 1–2 × 0.5–1.5 cm, base cuneate, margins (tinged with red), entire, ± cupped, abaxial surface smooth, densely gray-tomentose, adaxial surface smooth, sparsely puberulent. |
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, axis 0.3–0.5 cm, 1+ mm diam., short gray-hairy; bracts not appressed, scalelike (proximalmost leaflike), lanceolate or oblanceolate, 2–3 mm, apex acute to mucronate, surfaces hairy or glabrous. |
Pedicels | 3–5 mm, sparsely hairy or glabrous. |
3–4 mm, hairy. |
Flowers | corolla white, conic to urceolate; ovary glabrous. |
corolla white, urceolate; ovary white-hairy or ± glabrous. |
Fruits | depressed-globose, 5–8 mm diam., glabrous. |
globose, 5–6 mm diam., sparsely hairy or glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos purissima |
Arctostaphylos pumila |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on deep, sandy soils | Sand dunes, maritime chaparral, open, closed-cone conifer forests |
Elevation | 0-100 m (0-300 ft) | 0-300 m (0-1000 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 pumila is known from the southern Monterey Bay region, Monterey County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 434. | FNA vol. 8, p. 424. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | P. V. Wells: Madroño 19: 195. 1968 , | Nuttall: Trans. Amer. Philos. Soc., n. s. 8: 266. 1842 , |
Web links |