Arctostaphylos purissima
Arctostaphylos crustacea
La Purisima manzanita, La Purissima manzanita
brittle leaf manzanita
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 2–5 mm;
blade dull light green abaxially, shiny dark green adaxially, oblong-ovate to oblong-lanceolate, 2–5 × 1.5–2.5 cm, base truncate to ± lobed, margins entire (sometimes toothed), sometimes cupped or ± revolute, abaxial surface smooth, glabrous or sparsely or finely tomentose, adaxial surface smooth, ± glabrous (sometimes densely tomentose).
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, 2–8-branched;
immature inflorescence pendent, rarely ascending, branches spreading, axis 1–2.5 cm, 1+ mm diam., sparsely to densely short-hairy, sometimes glandular, or long-hairy eglandular;
bracts not appressed, proximal leaflike, distal often scalelike, from scalelike and awl-like to broadly leaflike and deltate to lanceolate, 3–8 mm, apex acute, surfaces glabrous or hairy.
3–5 mm, sparsely hairy or glabrous.
2–5 mm, glabrous or short-hairy.
corolla white, conic to urceolate;
ovary glabrous.
corolla white, conic to urceolate;
ovary white-hairy or glabrous.
depressed-globose, 5–8 mm diam., glabrous.
depressed-globose, 6–10 mm diam., glabrous or sparsely hairy.
distinct.
distinct.
= 26.
Arctostaphylos purissima
Arctostaphylos crustacea
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.)
Subspecies 6 (6 in the flora).
Arctostaphylos crustacea comprises populations from central California and the Channel Islands in areas moderated by summer maritime fog. One subspecies is widespread, from the San Francisco Bay area to the Channel Islands; the others are limited in distribution.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Twigs, abaxial surface of leaf blades, and immature inflorescence axes densely glandular- hairy | subsp. subcordata |
1. Twigs, abaxial surface of leaf blades, and immature inflorescence axes glabrous or hairy, sometimes glandular (not densely glandular-hairy) | → 2 |
2. Twigs short-hairy and with longer hairs | → 3 |
2. Twigs usually short-hairy (without longer hairs) | → 4 |
3. Leaf blades ± glabrous or sparsely short-hairy abaxially. | subsp. crustacea |
3. Leaf blades densely short-hairy abaxially (and sometimes adaxially). | subsp. crinita |
4. Leaf blades tomentose abaxially. | subsp. insulicola |
4. Leaf blades glabrous abaxially | → 5 |
5. Ovaries glabrous. | subsp. eastwoodiana |
5. Ovaries densely hairy. | subsp. rosei |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
