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green-leaf manzanita

woolly leaf 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 or mound-forming, 1–3 m; burl present; bark of older stems persistent, gray, shredded; twigs usually short-hairy, sometimes with long hairs and glandular hairs.
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.

bifacial in stomatal distribution;

petiole 2–5 mm;

blade dark to bright green, dull abaxially, ± shiny adaxially, oblong-ovate to oblong-lanceolate, 2–5 × 1.5–2.5 cm, base truncate to ± lobed, margins entire, sometimes toothed, cupped or ± rolled, (distal portion glabrous, proximal tomentose), surfaces short-hairy or glabrous abaxially, papillate, scabrous, sometimes finely glandular-hairy or ± glabrous adaxially.

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, 2–8-branched;

immature inflorescence pendent, axis 1–2.5 cm, 1+ mm diam., usually short-hairy, sometimes with long hairs and glandular hairs;

bracts not appressed, leaflike, lanceolate, 8–15 mm, apex acute, surfaces glabrous, hairy, or finely glandular-hairy.

Pedicels

2–7 mm, glabrous or white-hairy.

2–5 mm, sparsely hairy, sometimes glandular, or hairy.

Flowers

corolla mostly pink, conic to urceolate;

ovary glabrous or white-hairy.

corolla white, conic to urceolate;

ovary white-hairy and sometimes sparsely glandular.

Fruits

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

depressed-globose, 6–10 mm diam., sparsely hairy or glabrous.

Stones

distinct.

distinct.

2n

= 26.

Arctostaphylos patula

Arctostaphylos tomentosa

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
[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 4 (4 in the flora).

Arctostaphylos tomentosa is found in coastal central California, in areas that receive summer fog. Most subspecies are narrowly distributed.

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

Key
1. Twigs densely glandular-hairy
subsp. bracteosa
1. Twigs eglandular
→ 2
2. Twigs short-hairy and with long, white hairs.
subsp. daciticola
2. Twigs short-hairy
→ 3
3. Leaf blades tomentose abaxially (at least younger leaves).
subsp. tomentosa
3. Leaf blades glabrous abaxially.
subsp. hebeclada
Source FNA vol. 8, p. 416. FNA vol. 8, p. 439.
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. 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. 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. uva-ursi, A. virgata, A. viridissima, A. viscida
Subordinate taxa
A. tomentosa subsp. bracteosa, A. tomentosa subsp. daciticola, A. tomentosa subsp. hebeclada, A. tomentosa subsp. tomentosa
Synonyms A. acutifolia, A. parryana var. pinetorum, A. patula var. coalescens, A. patula subsp. platyphylla, A. platyphylla Arbutus tomentosa
Name authority Greene: Pittonia 2: 171. 1891 , (Pursh) Lindley: Edwards’s Bot. Reg. 21: plate 1791. 1835 ,
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