Flora of North America species comparison

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Arctostaphylos glutinosa

Arctostaphylos klamathensis

Schreiber's manzanita

Klamath manzanita
Habit Shrubs, erect, 1–2 m; burl absent; twigs sparsely to densely soft-hairy with some glandular hairs. Shrubs, prostrate or mat-forming, 0.1–0.5 m; burl absent; twigs sparsely glandular-hairy.
Leaves

petiole to 4 mm;

blade glaucous, dull, oblong to oblong-ovate, 2–5 × 1–3 cm, base distinctly lobed, auriculate-clasping, margins entire, plane, surfaces smooth, gray-canescent, glabrescent.

petiole 4–7 mm, (glandular-hairy);

blade glaucous, dull, obovate to oblanceolate or widely elliptic, 1–3.5 × 0.5–2.5 cm, base cuneate or obtuse, margins entire, plane, surfaces papillate, ± scabrous, midvein sparsely, finely glandular-hairy.
Inflorescences

panicles, 2–4-branched;

immature inflorescence pendent, branches spreading, curved, (obscured by bracts), axis 1.5–2.5 cm, 1+ mm diam., sparsely to densely soft-hairy with glandular hairs;

bracts not appressed, leaflike, oblong-lanceolate, 5–15 mm, apex acute, surfaces canescent.

racemes, simple or 1-branched;

immature inflorescence pendent, (globose), axis 0.5–1 cm, 1+ mm diam., sparsely glandular-hairy;

bracts not appressed, scalelike, awl-like, 2–5 mm, apex acute, surfaces glandular-hairy.
Pedicels

5–8 mm, finely glandular-hairy.

3–6 mm, finely glandular-hairy.
Flowers

corolla white, urceolate;

ovary densely long white-hairy, hairs often gland-tipped.

corolla white, urceolate;

ovary glandular-hairy.
Fruits

depressed-globose, 7–14 mm diam., glandular-hairy, (viscid).

globose, 6–7 mm diam., glabrous.
Stones

distinct.

connate into single sphere.
2n

= 26.

= 26.

Arctostaphylos glutinosa

Arctostaphylos klamathensis
Phenology Flowering winter–early spring. Flowering late spring.
Habitat Chaparral, closed-cone conifer forests Open, subalpine forests on soils derived from gabbro
Elevation 500- 700 m (1600- 2300 ft) 1600-2000 m (5200-6600 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos glutinosa is found in chaparral and knobcone pine woodlands on Monterey Shale barrens near the Pacific Coast in a limited area of the central Santa Cruz Mountains on northern Ben Lomond Mountain in Santa Cruz County.

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

Of conservation concern.

Arctostaphylos klamathensis is known from the eastern Klamath Mountains, Siskiyou and Trinity counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 431. FNA vol. 8, p. 436.
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. 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
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. 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
Name authority B. Schreiber: Amer. Midl. Naturalist 23: 620, plate 1, fig. 2. 1940 , S. W. Edwards: Four Seasons 6(4): 20, figs. 1, 2. (1983)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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