FNA: Arctostaphylos malloryi vs. Arctostaphylos catalinae

	Arctostaphylos malloryi	Arctostaphylos catalinae
	Balaklala manzanita, Mallory's manzanita	Santa Catalina Island manzanita
Habit	Shrubs, erect or mound-forming, 1–3 m; burl absent; twigs sparsely short-hairy, viscid glandular-hairy.	Shrubs or trees, erect, 2–5 m; burl absent; twigs densely glandular-hairy with long, white 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 2–6 mm; blade green-glaucescent, dull, lanceolate-ovate to elliptic, 2–5 × 1.5–3 cm, base truncate to ± slightly lobed, margins entire or ± serrate, plane, surfaces papillate, scabridulous, glandular-hispid.
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, 4–10-branched; immature inflorescence pendent, branches ± spreading, axis 2–3 cm, 1+ mm diam., densely glandular-hairy with long, white hairs; bracts not appressed, (overlapping on distal 1/2, green), leaflike, lanceolate to narrowly ovate, 6–10(–15) mm, apex acute, surfaces sparsely glandular-hairy.
Pedicels	6–9 mm, finely glandular-hairy.	2–5 mm, densely white-hairy.
Flowers	corolla white, conic to urceolate; ovary densely white-hairy.	corolla white, conic to urceolate; ovary densely white-hairy, sparsely glandular-hairy.
Fruits	depressed-globose, 7–9 mm diam., hairy or glabrous.	globose, 8–15 mm diam., sparsely hairy.
Stones	distinct.	distinct.
2n	= 26.	= 26.

	Arctostaphylos malloryi	Arctostaphylos catalinae
Phenology	Flowering winter–late spring.	Flowering winter–early spring.
Habitat	Chaparral, open forests	Chaparral, open woodlands
Elevation	200-1200 m (700-3900 ft)	0-500 m (0-1600 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 catalinae is known from Santa Catalina Island. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 8, p. 430.	FNA vol. 8, p. 427.
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. 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
Synonyms	A. canescens subsp. malloryi
Name authority	(W. Knight & Gankin) P. V. Wells: Four Seasons 9(2): 54. 1992 ,	P. V. Wells: Madroño 19: 193. 1968 ,
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 catalinae

Balaklala manzanita, Mallory's manzanita

Santa Catalina Island manzanita

Habit

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

Shrubs or trees, erect, 2–5 m; burl absent; twigs densely glandular-hairy with long, white 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 2–6 mm;

blade green-glaucescent, dull, lanceolate-ovate to elliptic, 2–5 × 1.5–3 cm, base truncate to ± slightly lobed, margins entire or ± serrate, plane, surfaces papillate, scabridulous, glandular-hispid.

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, 4–10-branched;

immature inflorescence pendent, branches ± spreading, axis 2–3 cm, 1+ mm diam., densely glandular-hairy with long, white hairs;

bracts not appressed, (overlapping on distal 1/2, green), leaflike, lanceolate to narrowly ovate, 6–10(–15) mm, apex acute, surfaces sparsely glandular-hairy.

Pedicels

6–9 mm, finely glandular-hairy.

2–5 mm, densely white-hairy.

Flowers

corolla white, conic to urceolate;

ovary densely white-hairy.

corolla white, conic to urceolate;

ovary densely white-hairy, sparsely glandular-hairy.

Fruits

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

globose, 8–15 mm diam., sparsely hairy.

Stones

distinct.

= 26.

Arctostaphylos catalinae

Phenology

Flowering winter–late spring.

Flowering winter–early spring.

Habitat

Chaparral, open forests

Chaparral, open woodlands

Elevation

200-1200 m (700-3900 ft)

0-500 m (0-1600 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 catalinae is known from Santa Catalina Island.

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

Source

FNA vol. 8, p. 430.

FNA vol. 8, p. 427.

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. 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

Synonyms

A. canescens subsp. malloryi

Name authority

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

P. V. Wells: Madroño 19: 193. 1968 ,

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).

Choose a data source: Flora of North America

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Flora of North America species comparison

Arctostaphylos malloryi

Arctostaphylos catalinae

Arctostaphylos malloryi

Arctostaphylos catalinae