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green-leaf manzanita

downy manzanita, hoary manzanita

Habit Shrubs, erect or mound-forming, 1–3 m; burl usually absent, sometimes flat, obscure; twigs usually densely short-hairy with golden glands on tips of hairs, rarely short white-hairy and eglandular. Shrubs, erect, 0.3–3 m; burl absent; twigs densely short soft-hairy to white-tomentose.
Leaves

petiole 7–15 mm;

blade bright green (lightly gray-green if short-hairy), shiny, widely ovate to orbiculate, 2.5–6 × 1.5–4 cm, base rounded, truncate, or slightly lobed, (not clasping), margins entire, plane, surfaces smooth, glabrous or, rarely, short-hairy.

petiole 3–10 mm;

blade whitish gray, dull, orbiculate-ovate, ovate, or elliptic, 2–5 × 1–3 cm, base rounded to cuneate, margins entire, plane, surfaces smooth, gray-canescent, glabrescent.

Inflorescences

panicles, 2–8-branched;

immature inflorescence pendent, branches spreading, axis 1.5–3 cm, 1+ mm diam., hairy with golden glands on tips of hairs or short-hairy and eglandular;

bracts appressed with incurved tips, scalelike, deltate, 4–6 mm, apex acuminate, surfaces usually densely tomentose with golden glands on tips of hairs, rarely short white-hairy and eglandular.

panicles, 1–3-branched, immature inflorescence pendent, (branches crowded, bell-shaped, ± obscured by bracts), axis 1–2 cm, 1+ mm diam., densely short soft-hairy to white-tomentose;

bracts not appressed, (spreading), leaflike, wide-lanceolate, 6–20 mm, apex acute, surfaces canescent.

Pedicels

2–7 mm, glabrous or white-hairy.

5–9 mm, hairy, sometimes glandular.

Flowers

corolla mostly pink, conic to urceolate;

ovary glabrous or white-hairy.

corolla white to pink, conic to urceolate;

ovary densely white-hairy, sometimes glandular.

Fruits

depressed-globose, sometimes subglobose, 7–10 mm diam., glabrous.

depressed-globose, 5–10 mm diam., sparsely hairy or glabrous, sometimes sparsely glandular.

Stones

distinct.

distinct.

2n

= 26.

Arctostaphylos patula

Arctostaphylos canescens

Phenology Flowering late spring–early summer.
Habitat Mountain chaparral and forests
Elevation 400-3000 m (1300-9800 ft)
Distribution
from FNA
AZ; CA; CO; MT; NV; OR; UT; WA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Arctostaphylos patula is abundant and widespread in western North America as a dominant in montane chaparral, pine forest gaps, and high-elevation arid-steppe and canyon-land environments. Populations throughout western North America are characterized by twigs and inflorescence parts covered with relatively short hairs tipped with golden glands. In the central to northern Sierra Nevada, mixed with the widespread form are individuals that are eglandular and have a cover of relatively short, whitish hairs on the stems and inflorescences. Similarly, throughout most of its range, A. patula is nonsprouting after fire, and in areas characterized by winter snow cover it layers and creates broad, low mounds. In much of California, it typically sprouts after fires from obscure and flattened burls, forming circles of erect sprouts.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies 2 (2 in the flora).

Arctostaphylos canescens is widespread in the Coast Ranges of central and northern California and northward into southwestern Oregon.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Twigs, inflorescence axes, pedicels, and fruits eglandular.
subsp. canescens
1. Twigs, inflorescence axes, pedicels, and fruits glandular-hairy.
subsp. sonomensis
Source FNA vol. 8, p. 416. FNA vol. 8, p. 429.
Parent taxa Ericaceae > subfam. Arbutoideae > Arctostaphylos 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. pacifica, A. pajaroensis, A. pallida, A. parryana, 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
A. andersonii, A. auriculata, A. bakeri, 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. pacifica, 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
Subordinate taxa
A. canescens subsp. canescens, A. canescens subsp. sonomensis
Synonyms A. acutifolia, A. parryana var. pinetorum, A. patula var. coalescens, A. patula subsp. platyphylla, A. platyphylla
Name authority Greene: Pittonia 2: 171. 1891 , Eastwood: Proc. Calif. Acad. Sci., ser. 3, 1: 84. 1897 ,
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