FNA: Arctostaphylos malloryi vs. Arctostaphylos klamathensis

	Arctostaphylos malloryi	Arctostaphylos klamathensis
	Balaklala manzanita, Mallory's manzanita	Klamath manzanita
Habit	Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy.	Shrubs, prostrate or mat-forming, 0.1–0.5 m; burl absent; twigs sparsely glandular-hairy.
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 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, 2–5-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.	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	6–9 mm, finely glandular-hairy.	3–6 mm, finely glandular-hairy.
Flowers	corolla white, conic to urceolate; ovary densely white-hairy.	corolla white, urceolate; ovary glandular-hairy.
Fruits	depressed-globose, 7–9 mm diam., hairy or glabrous.	globose, 6–7 mm diam., glabrous.
Stones	distinct.	connate into single sphere.
2n	= 26.	= 26.

	Arctostaphylos malloryi	Arctostaphylos klamathensis
Phenology	Flowering winter–late spring.	Flowering late spring.
Habitat	Chaparral, open forests	Open, subalpine forests on soils derived from gabbro
Elevation	200-1200 m (700-3900 ft)	1600-2000 m (5200-6600 ft)
Distribution	CA [BONAP county map]	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 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. 430.	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. 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. 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
Synonyms	A. canescens subsp. malloryi
Name authority	(W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 ,	S. W. Edwards: Four Seasons 6(4): 20, figs. 1, 2. (1983)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Arctostaphylos klamathensis

Balaklala manzanita, Mallory's manzanita

Klamath manzanita

Habit

Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy.

Shrubs, prostrate or mat-forming, 0.1–0.5 m; burl absent; twigs sparsely glandular-hairy.

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 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, 2–5-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.

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

6–9 mm, finely glandular-hairy.

3–6 mm, finely glandular-hairy.

Flowers

corolla white, conic to urceolate;

ovary densely white-hairy.

corolla white, urceolate;

ovary glandular-hairy.

Fruits

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

globose, 6–7 mm diam., glabrous.

Stones

distinct.

connate into single sphere.

= 26.

Arctostaphylos malloryi

Arctostaphylos klamathensis

Phenology

Flowering winter–late spring.

Flowering late spring.

Habitat

Chaparral, open forests

Open, subalpine forests on soils derived from gabbro

Elevation

200-1200 m (700-3900 ft)

1600-2000 m (5200-6600 ft)

Distribution

[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 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. 430.

FNA vol. 8, p. 436.

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. 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

Synonyms

A. canescens subsp. malloryi

Name authority

(W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 ,

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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Arctostaphylos malloryi

Arctostaphylos klamathensis

Arctostaphylos malloryi

Arctostaphylos klamathensis