Arctostaphylos purissima |
Arctostaphylos sensitiva |
|
---|---|---|
La Purisima manzanita, La Purissima manzanita |
coinleaf manzanita, dwarf manzanita, glossyleaf manzanita |
|
Habit | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. | Shrubs, erect or mound-forming, 1–2 m; burl absent; bark on older stems red, smooth; twigs densely short-haired with longer gland-tipped hairs. |
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 1–3 mm; blade light green abaxially, dark green adaxially, shiny, orbiculate to orbiculate-ovate, 1–2.2 × 0.8–1.8 cm, base truncate to ± lobed, margins entire, cupped, surfaces smooth, glabrous, midvein hairy. |
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. |
panicles, 4–8-branched; immature inflorescence pendent, branches spreading, axis 0.5–1 cm, to 1 mm diam., densely short-hairy with longer gland-tipped hairs; bracts appressed, scalelike, deltate, 0.5–2 mm, apex acute, surfaces glabrous. |
Pedicels | 3–5 mm, sparsely hairy or glabrous. |
3–5 mm, glabrous. |
Flowers | corolla white, conic to urceolate; ovary glabrous. |
4-merous; corolla white to pink, urceolate; ovary white-hairy. |
Fruits | depressed-globose, 5–8 mm diam., glabrous. |
subcylindric, 3–4 mm diam., glabrous. |
Stones | distinct. |
distinct (breaking apart in mature fruit). |
2n | = 26. |
= 26. |
Arctostaphylos purissima |
Arctostaphylos sensitiva |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on deep, sandy soils | Sandstone uplands in maritime chaparral or closed-cone conifer forests near coast |
Elevation | 0-100 m (0-300 ft) | 100-600 m (300-2000 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 sensitiva occurs in Marin, San Mateo, and Santa Cruz counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 434. | FNA vol. 8, p. 418. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. nummularia subsp. sensitiva, A. nummularia var. sensitiva | |
Name authority | P. V. Wells: Madroño 19: 195. 1968 , | Jepson: Madroño 1: 85. 1922 , |
Web links |