Arctostaphylos hooveri |
Arctostaphylos pacifica |
|
---|---|---|
Hoover's manzanita |
Pacific manzanita |
|
Habit | Shrubs or trees, erect, 2–8 m; burl absent; twigs densely fine-hairy, with long, white, gland-tipped hairs. | Shrubs, prostrate or mound-forming, 0.1–0.3 m; burl present, sometimes epicormic; twigs short-hairy. |
Leaves | petiole 3–6 mm; blade glaucous, dull, oblong to ovate, 4–6 × 2–3 cm, base lobed, auriculate, (not clasping), margins entire, plane, surfaces papillate, scabrous, glandular-hairy, ± glabrescent. |
petiole 2–4 mm; blade light green abaxially, dark green adaxially, shiny, elliptic, 1–2 × 0.5–1 cm, base cuneate, margins serrulate, plane, surfaces smooth, sparsely hairy. |
Inflorescences | panicles, 4–6-branched; immature inflorescence pendent, (concealed by bracts), axis 1.5–2.5 cm, 1+ mm diam., densely fine-hairy with long, white, gland-tipped hairs; bracts not appressed, leaflike, lanceolate, 8–20 mm, apex acuminate, surfaces glandular-hairy. |
racemes, (simple or 1-branched); immature inflorescence pendent, (congested), axis 0.5–1 cm, 1+ mm diam., short-hairy; bracts appressed, scalelike, awl-like, 0.5–1 mm, apex acute, glabrous. |
Pedicels | 8–15 mm, finely glandular-hairy. |
3–5 mm, glabrous. |
Flowers | corolla white, conic to urceolate; ovary finely glandular-hairy. |
corolla white, urceolate; ovary glabrous. |
Fruits | depressed-globose, 6–10 mm diam., glandular-hairy, (viscid). |
(reddish), globose, 6–8 mm diam., glabrous. |
Stones | distinct. |
distinct. |
2n | = 26. |
|
Arctostaphylos hooveri |
Arctostaphylos pacifica |
|
Phenology | Flowering winter–early spring. | Flowering winter–early spring. |
Habitat | Chaparral, open conifer forests | Sandstone outcrops |
Elevation | 900-1200 m (3000-3900 ft) | 300 m (1000 ft) |
Distribution |
CA
|
CA
|
Discussion | Of conservation concern. Arctostaphylos hooveri is known from the northern Santa Lucia Mountains in Monterey County. Populations are associated with openings in yellow pine forests and patches of chaparral. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. A distinctive species with an uncertain origin, Arctostaphylos pacifica has often been relegated to hybrid status and ignored; it displays a number of unique characters not found in any other species. It is found only at one location, San Bruno Mountain, the northern part of the Santa Cruz Mountains, San Mateo County. The relationships of this species need additional study. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 433. | FNA vol. 8, p. 415. |
Parent taxa | Ericaceae > subfam. Arbutoideae > Arctostaphylos | Ericaceae > subfam. Arbutoideae > Arctostaphylos |
Sibling taxa | ||
Name authority | P. V. Wells: Leafl. W. Bot. 9: 152. 1961 , | Roof: Leafl. W. Bot. 9: 217. 1962 , |
Web links |