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Pacific manzanita

Habit Shrubs, prostrate or mound-forming, 0.1–0.3 m; burl present, sometimes epicormic; twigs short-hairy.
Leaves

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

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

3–5 mm, glabrous.

Flowers

corolla white, urceolate;

ovary glabrous.

Fruits

(reddish), globose, 6–8 mm diam., glabrous.

Stones

distinct.

Arctostaphylos pacifica

Phenology Flowering winter–early spring.
Habitat Sandstone outcrops
Elevation 300 m (1000 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

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. 415.
Parent taxa Ericaceae > subfam. Arbutoideae > Arctostaphylos
Sibling taxa
A. andersonii, A. auriculata, A. bakeri, A. canescens, A. catalinae, A. columbiana, A. confertiflora, A. crustacea, A. cruzensis, A. densiflora, A. edmundsii, A. franciscana, A. gabilanensis, A. glandulosa, A. glauca, A. glutinosa, A. hispidula, A. hookeri, A. hooveri, A. imbricata, A. insularis, A. klamathensis, A. luciana, A. malloryi, A. manzanita, A. mewukka, A. montana, A. montaraensis, A. montereyensis, A. morroensis, A. myrtifolia, A. nevadensis, A. nissenana, A. nortensis, A. nummularia, A. obispoensis, A. ohloneana, A. osoensis, A. otayensis, A. pajaroensis, A. pallida, A. parryana, A. patula, A. pechoensis, A. pilosula, A. pringlei, A. pumila, A. pungens, A. purissima, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, A. sensitiva, A. silvicola, A. stanfordiana, A. tomentosa, A. uva-ursi, A. virgata, A. viridissima, A. viscida
Name authority Roof: Leafl. W. Bot. 9: 217. 1962 ,
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