Arctostaphylos purissima |
Arctostaphylos insularis |
|
---|---|---|
La Purisima manzanita, La Purissima manzanita |
island manzanita |
|
Habit | Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. | Shrubs, erect, (arborescent), 2–5 m; burl absent; (lower stems reddish with glaucous patches); twigs glabrous, sometimes sparsely short-hairy or sparsely glandular-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 4–8 mm; blade bright green, lustrous, oblong-elliptic, 2.5–4.5 × 1–3 cm, base rounded, margins entire, ± cupped, surfaces smooth, 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. |
panicles, 5–10-branched; immature inflorescence pendent, branches spreading, ascending, or erect, axis 2–3 cm, 1+ mm diam., glabrous, sometimes sparsely short-hairy or sparsely glandular-hairy, (buds ± spread apart); bracts not appressed, scalelike, deltate, 1.5–3 mm, apex acute, surfaces finely glandular-hairy. |
Pedicels | 3–5 mm, sparsely hairy or glabrous. |
6–9 mm, finely glandular-hairy. |
Flowers | corolla white, conic to urceolate; ovary glabrous. |
corolla white, conic to urceolate; ovary glabrous or sparsely glandular-hairy. |
Fruits | depressed-globose, 5–8 mm diam., glabrous. |
depressed-globose, 8–15 mm diam., sparsely hairy or glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos purissima |
Arctostaphylos insularis |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Maritime chaparral on deep, sandy soils | Island chaparral and woodlands |
Elevation | 0-100 m (0-300 ft) | 200-400 m (700-1300 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 insularis is known from Santa Cruz Island. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 434. | FNA vol. 8, p. 422. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. insularis var. pubescens | |
Name authority | P. V. Wells: Madroño 19: 195. 1968 , | Greene ex Parry: Bull. Calif. Acad. Sci. 2: 494. 1887 , |
Web links |