FNA: Arctostaphylos hooveri vs. Arctostaphylos edmundsii

	Arctostaphylos hooveri	Arctostaphylos edmundsii
	Hoover's manzanita	little sur manzanita
Habit	Shrubs or trees, erect, 2–8 m; burl absent; twigs densely fine-hairy, with long, white, gland-tipped hairs.	Shrubs, prostrate or mound-forming, 0.2–1.5 m; burl absent; twigs sparsely short-hairy.
Leaves	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.	bifacial in stomatal distribution; petiole 2–3 mm; blade dark green, lustrous, orbiculate to orbiculate-ovate, 1–2.5 × 1–1.5 cm, base truncate to ± lobed, margins entire, plane, surfaces smooth, sparsely puberulent.
Inflorescences	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.	panicles, 2–5-branched; immature inflorescence pendent, (branches crowded), axis 0.5–1 cm, 1+ mm diam., sparsely short-hairy; bracts not appressed, scalelike, deltate to awl-like, 3–5 mm, apex acute, surfaces sparsely hairy or glabrous.
Pedicels	8–15 mm, finely glandular-hairy.	3–4 mm, sparsely hairy or glabrous.
Flowers	corolla white, conic to urceolate; ovary finely glandular-hairy.	corolla white, urceolate; ovary sparsely hairy or glabrous.
Fruits	depressed-globose, 6–10 mm diam., glandular-hairy, (viscid).	subglobose, 6–8 mm diam., glabrous.
Stones	distinct.	distinct.
2n	= 26.	= 26.

	Arctostaphylos hooveri	Arctostaphylos edmundsii
Phenology	Flowering winter–early spring.	Flowering winter–early spring.
Habitat	Chaparral, open conifer forests	Steep, rocky slopes and bluffs near ocean
Elevation	900-1200 m (3000-3900 ft)	0-500 m (0-1600 ft)
Distribution	CA [WildflowerSearch map] [BONAP county map]	CA [BONAP county map]
Discussion	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.)	Of conservation concern. Arctostaphylos edmundsii is narrowly distributed along the Pacific Coast in the Little Sur region in the northern Santa Lucia Range, Monterey County. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 8, p. 433.	FNA vol. 8, p. 424.
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. 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. 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. edmundsii var. parvifolia, A. uva-ursi subsp. edmundsii, A. uva-ursi var. parvifolia
Name authority	P. V. Wells: Leafl. W. Bot. 9: 152. 1961 ,	J. T. Howell: Leafl. W. Bot. 6: 202. 1952 ,
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 hooveri

Arctostaphylos edmundsii

Hoover's manzanita

little sur manzanita

Habit

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

Shrubs, prostrate or mound-forming, 0.2–1.5 m; burl absent; twigs sparsely short-hairy.

Leaves

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.

bifacial in stomatal distribution;

petiole 2–3 mm;

blade dark green, lustrous, orbiculate to orbiculate-ovate, 1–2.5 × 1–1.5 cm, base truncate to ± lobed, margins entire, plane, surfaces smooth, sparsely puberulent.

Inflorescences

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.

panicles, 2–5-branched;

immature inflorescence pendent, (branches crowded), axis 0.5–1 cm, 1+ mm diam., sparsely short-hairy;

bracts not appressed, scalelike, deltate to awl-like, 3–5 mm, apex acute, surfaces sparsely hairy or glabrous.

Pedicels

8–15 mm, finely glandular-hairy.

3–4 mm, sparsely hairy or glabrous.

Flowers

corolla white, conic to urceolate;

ovary finely glandular-hairy.

corolla white, urceolate;

ovary sparsely hairy or glabrous.

Fruits

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

subglobose, 6–8 mm diam., glabrous.

Stones

distinct.

= 26.

Arctostaphylos hooveri

Arctostaphylos edmundsii

Phenology

Flowering winter–early spring.

Habitat

Chaparral, open conifer forests

Steep, rocky slopes and bluffs near ocean

Elevation

900-1200 m (3000-3900 ft)

0-500 m (0-1600 ft)

Distribution

[WildflowerSearch map]

[BONAP county map]

Discussion

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.)

Of conservation concern.

Arctostaphylos edmundsii is narrowly distributed along the Pacific Coast in the Little Sur region in the northern Santa Lucia Range, Monterey County.

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

Source

FNA vol. 8, p. 433.

FNA vol. 8, p. 424.

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. 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. 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. edmundsii var. parvifolia, A. uva-ursi subsp. edmundsii, A. uva-ursi var. parvifolia

Name authority

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

J. T. Howell: Leafl. W. Bot. 6: 202. 1952 ,

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 hooveri

Arctostaphylos edmundsii

Arctostaphylos hooveri

Arctostaphylos edmundsii