FNA: Arctostaphylos catalinae vs. Arctostaphylos hooveri

	Arctostaphylos catalinae	Arctostaphylos hooveri
	Santa Catalina Island manzanita	Hoover's manzanita
Habit	Shrubs or trees, erect, 2–5 m; burl absent; twigs densely glandular-hairy with long, white hairs.	Shrubs or trees, erect, 2–8 m; burl absent; twigs densely fine-hairy, with long, white, gland-tipped hairs.
Leaves	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.	petiole 3–6 mm; blade glaucous, dull, oblong to ovate, 4–6 × 2–3 cm, base lobed, auriculate, (not clasping), margins entire, plane, surfaces papillate, scabrous, glandular-hairy, ± glabrescent.
Inflorescences	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.	panicles, 4–6-branched; immature inflorescence pendent, (concealed by bracts), axis 1.5–2.5 cm, 1+ mm diam., densely fine-hairy with long, white, gland-tipped hairs; bracts not appressed, leaflike, lanceolate, 8–20 mm, apex acuminate, surfaces glandular-hairy.
Pedicels	2–5 mm, densely white-hairy.	8–15 mm, finely glandular-hairy.
Flowers	corolla white, conic to urceolate; ovary densely white-hairy, sparsely glandular-hairy.	corolla white, conic to urceolate; ovary finely glandular-hairy.
Fruits	globose, 8–15 mm diam., sparsely hairy.	depressed-globose, 6–10 mm diam., glandular-hairy, (viscid).
Stones	distinct.	distinct.
2n	= 26.	= 26.

	Arctostaphylos catalinae	Arctostaphylos hooveri
Phenology	Flowering winter–early spring.	Flowering winter–early spring.
Habitat	Chaparral, open woodlands	Chaparral, open conifer forests
Elevation	0-500 m (0-1600 ft)	900-1200 m (3000-3900 ft)
Distribution	CA [BONAP county map]	CA [WildflowerSearch map] [BONAP county map]
Discussion	Of conservation concern. Arctostaphylos catalinae is known from Santa Catalina Island. (Discussion copyrighted by Flora of North America; reprinted with permission.)	Of conservation concern. Arctostaphylos hooveri is known from the northern Santa Lucia Mountains in Monterey County. Populations are associated with openings in yellow pine forests and patches of chaparral. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 8, p. 427.	FNA vol. 8, p. 433.
Parent taxa	Ericaceae > subfam. Arbutoideae > Arctostaphylos	Ericaceae > subfam. Arbutoideae > Arctostaphylos
Sibling taxa	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	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. 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
Name authority	P. V. Wells: Madroño 19: 193. 1968 ,	P. V. Wells: Leafl. W. Bot. 9: 152. 1961 ,
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

Arctostaphylos hooveri

Santa Catalina Island manzanita

Hoover's manzanita

Habit

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

Shrubs or trees, erect, 2–8 m; burl absent; twigs densely fine-hairy, with long, white, gland-tipped hairs.

Leaves

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.

petiole 3–6 mm;

blade glaucous, dull, oblong to ovate, 4–6 × 2–3 cm, base lobed, auriculate, (not clasping), margins entire, plane, surfaces papillate, scabrous, glandular-hairy, ± glabrescent.

Inflorescences

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.

panicles, 4–6-branched;

immature inflorescence pendent, (concealed by bracts), axis 1.5–2.5 cm, 1+ mm diam., densely fine-hairy with long, white, gland-tipped hairs;

bracts not appressed, leaflike, lanceolate, 8–20 mm, apex acuminate, surfaces glandular-hairy.

Pedicels

2–5 mm, densely white-hairy.

8–15 mm, finely glandular-hairy.

Flowers

corolla white, conic to urceolate;

ovary densely white-hairy, sparsely glandular-hairy.

corolla white, conic to urceolate;

ovary finely glandular-hairy.

Fruits

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

depressed-globose, 6–10 mm diam., glandular-hairy, (viscid).

Stones

distinct.

= 26.

Arctostaphylos catalinae

Arctostaphylos hooveri

Phenology

Flowering winter–early spring.

Habitat

Chaparral, open woodlands

Chaparral, open conifer forests

Elevation

0-500 m (0-1600 ft)

900-1200 m (3000-3900 ft)

Distribution

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Discussion

Of conservation concern.

Arctostaphylos catalinae is known from Santa Catalina Island.

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

Of conservation concern.

Arctostaphylos hooveri is known from the northern Santa Lucia Mountains in Monterey County. Populations are associated with openings in yellow pine forests and patches of chaparral.

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

Source

FNA vol. 8, p. 427.

FNA vol. 8, p. 433.

Parent taxa

Ericaceae > subfam. Arbutoideae > Arctostaphylos

Sibling taxa

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

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. 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

Name authority

P. V. Wells: Madroño 19: 193. 1968 ,

P. V. Wells: Leafl. W. Bot. 9: 152. 1961 ,

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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Arctostaphylos catalinae

Arctostaphylos hooveri

Arctostaphylos catalinae

Arctostaphylos hooveri