Flora of North America species comparison

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Arctostaphylos andersonii

Arctostaphylos hooveri

Anderson's manzanita, Santa Cruz manzanita

Hoover's manzanita
Habit Shrubs or trees, erect, (arborescent), 2–5 m; burl absent; twigs densely short-hairy with long, white, gland-tipped hairs. Shrubs or trees, erect, 2–8 m; burl absent; twigs densely fine-hairy, with long, white, gland-tipped hairs.
Leaves

bifacial in stomatal distribution;

petiole to 4 mm;

blade bright green, dull, oblong, 4–7 × 1.5–2.5 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous.

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, 4–6-branched;

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

bracts not appressed, leaflike, lanceolate, 8–15 mm, apex acute, surfaces short-hairy with long, gland-tipped hairs.

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

6–8 mm, finely glandular-hairy.

8–15 mm, finely glandular-hairy.
Flowers

corolla white, conic;

ovary finely glandular-hairy.

corolla white, conic to urceolate;

ovary finely glandular-hairy.
Fruits

depressed-globose, 6–8 mm diam., finely glandular-hairy, (viscid).

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

distinct.

distinct.
2n

= 26.

= 26.

Arctostaphylos andersonii

Arctostaphylos hooveri
Phenology Flowering winter–early spring. Flowering winter–early spring.
Habitat Chaparral, edges of open forests Chaparral, open conifer forests
Elevation 300-900 m (1000-3000 ft) 900-1200 m (3000-3900 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos andersonii is known from the central and southern Santa Cruz Mountains in Santa Cruz and Santa Clara counties.

(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. 432. FNA vol. 8, p. 433.
Parent taxa Ericaceae > subfam. Arbutoideae > Arctostaphylos Ericaceae > subfam. Arbutoideae > Arctostaphylos
Sibling taxa
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. 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 A. Gray: Proc. Amer. Acad. Arts 11: 83. 1876 , 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).



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