Flora of North America species comparison

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Arctostaphylos malloryi

Arctostaphylos glutinosa

Balaklala manzanita, Mallory's manzanita

Schreiber's manzanita
Habit Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy. Shrubs, erect, 1–2 m; burl absent; twigs sparsely to densely soft-hairy with some glandular hairs.
Leaves

petiole 5–10 mm;

blade glaucous, dull, orbiculate to ovate, 2–3 × 1.5–2.5 cm, base rounded, truncate, or ± lobed, margins entire, plane, surfaces smooth, gray-canescent or densely white-tomentose, glabrescent.

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.
Inflorescences

panicles, 2–5-branched;

immature inflorescence pendent, branches spreading or ascending, axis 1–2 cm, 1+ mm diam., sparsely short-hairy, viscid glandular-hairy;

bracts appressed, scalelike, linear-lanceolate, 3–5 mm, apex acute, surfaces canescent.

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.
Pedicels

6–9 mm, finely glandular-hairy.

5–8 mm, finely glandular-hairy.
Flowers

corolla white, conic to urceolate;

ovary densely white-hairy.

corolla white, urceolate;

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

depressed-globose, 7–9 mm diam., hairy or glabrous.

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

distinct.

distinct.
2n

= 26.

= 26.

Arctostaphylos malloryi

Arctostaphylos glutinosa
Phenology Flowering winter–late spring. Flowering winter–early spring.
Habitat Chaparral, open forests Chaparral, closed-cone conifer forests
Elevation 200-1200 m (700-3900 ft) 500- 700 m (1600- 2300 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos malloryi occurs in disjunct populations on volcanic soils in Colusa, Shasta, and Sonoma counties in the North Coast Ranges. It possibly originated as a hybrid between A. canescens and A. viscida, and merits further study.

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

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.)
Source FNA vol. 8, p. 430. FNA vol. 8, p. 431.
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. 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. 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
Synonyms A. canescens subsp. malloryi
Name authority (W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 , B. Schreiber: Amer. Midl. Naturalist 23: 620, plate 1, fig. 2. 1940 ,
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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