Arctostaphylos glauca |
Arctostaphylos catalinae |
|
---|---|---|
big berry manzanita |
Santa Catalina Island manzanita |
|
Habit | Shrubs or trees, erect, mound-forming, 1–8 m; burl absent; twigs usually glabrous, sometimes short-hairy or glandular-hairy. | Shrubs or trees, erect, 2–5 m; burl absent; twigs densely glandular-hairy with long, white hairs. |
Leaves | petiole 7–15 mm; blade white-glaucous, dull, oblong-ovate to ± orbiculate, 2.5–5 × 2–4 cm, base rounded, truncate, or slightly lobed, margins entire, plane, surfaces smooth, glabrous. |
petiole 2–6 mm; blade green-glaucescent, dull, lanceolate-ovate to elliptic, 2–5 × 1.5–3 cm, base truncate to ± slightly lobed, margins entire or ± serrate, plane, surfaces papillate, scabridulous, glandular-hispid. |
Inflorescences | panicles, 4–8-branched; immature inflorescence pendent, branches spreading, axis 2–3 cm, 1+ mm diam., usually glabrous, sometimes short-hairy or glandular-hairy; bracts not appressed, (spreading), scalelike, deltate, 3–6 mm, (fleshy), apex mucronate, surfaces glabrous; (buds exposed). |
panicles, 4–10-branched; immature inflorescence pendent, branches ± spreading, axis 2–3 cm, 1+ mm diam., densely glandular-hairy with long, white hairs; bracts not appressed, (overlapping on distal 1/2, green), leaflike, lanceolate to narrowly ovate, 6–10(–15) mm, apex acute, surfaces sparsely glandular-hairy. |
Pedicels | 8–10 mm, finely glandular-hairy. |
2–5 mm, densely white-hairy. |
Flowers | corolla white, conic to urceolate; ovary densely glandular-viscid. |
corolla white, conic to urceolate; ovary densely white-hairy, sparsely glandular-hairy. |
Fruits | globose, 12–15 mm diam., glabrous, (viscid). |
globose, 8–15 mm diam., sparsely hairy. |
Stones | connate into single sphere. |
distinct. |
2n | = 26. |
= 26. |
Arctostaphylos glauca |
Arctostaphylos catalinae |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Rocky slopes, chaparral, woodlands | Chaparral, open woodlands |
Elevation | 300-2200 m (1000-7200 ft) | 0-500 m (0-1600 ft) |
Distribution |
CA; Mexico (Baja California)
|
CA |
Discussion | Arctostaphylos glauca is widespread, occurring from Mount Diablo in central California through the southern Coast Ranges, east through the Transverse Ranges into the desert, and south in the Peninsular Ranges into northern Baja California, usually in drier interior ranges. It is distinctive throughout its range; however, some populations have nonglandular twig puberulence and others are stipitate-glandular, often mixed in with individuals that are typically glabrous. Arctostaphylos glauca can be a component of chaparral and can also be found in woodlands and at the edges of grasslands. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Arctostaphylos catalinae is known from Santa Catalina Island. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 422. | FNA vol. 8, p. 427. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Synonyms | A. glauca var. puberula | |
Name authority | Lindley: Edwards’s Bot. Reg. 21: sub plate 1791. 1835 , | P. V. Wells: Madroño 19: 193. 1968 , |
Web links |