Flora of North America species comparison

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Arctostaphylos andersonii

Arctostaphylos cruzensis

Anderson's manzanita, Santa Cruz manzanita

Arroyo De La cruz manzanita, La Cruz manzanita
Habit Shrubs or trees, erect, (arborescent), 2–5 m; burl absent; twigs densely short-hairy with long, white, gland-tipped hairs. Shrubs, prostrate or mat- or mound-forming, 0.1–1 m; burl absent; twigs sparsely short-hairy to sparsely hairy.
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 to 2 mm;

blade bright green, shiny, oblong-ovate, 1.5–3 × 1–2.5 cm, base auriculate-clasping, margins entire or toothed, plane, (hairy-ciliate proximally), surfaces smooth, finely tomentose, 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, 1–3-branched;

immature inflorescence pendent, (branches crowded, bell-shaped, concealed by bracts), axis 0.5–1.5 cm, 1+ mm diam., sparsely short-hairy and hairy;

bracts appressed, leaflike, lanceolate to lanceolate-ovate, 5–15 mm, apex acute, surfaces hairy.
Pedicels

6–8 mm, finely glandular-hairy.

4–5 mm, sparsely hairy.
Flowers

corolla white, conic;

ovary finely glandular-hairy.

corolla white, urceolate;

ovary densely white-hairy.
Fruits

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

depressed-globose, 8–10 mm diam., glabrous.
Stones

distinct.

distinct.
2n

= 26.

= 26.

Arctostaphylos andersonii

Arctostaphylos cruzensis
Phenology Flowering winter–early spring. Flowering winter–early spring.
Habitat Chaparral, edges of open forests Maritime chaparral, grasslands on alluvial and fluvial soils
Elevation 300-900 m (1000-3000 ft) 0-100 m (0-300 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[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 cruzensis is found near the coast in southern Monterey and northern San Luis Obispo counties. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 432. FNA vol. 8, p. 435.
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. 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
Name authority A. Gray: Proc. Amer. Acad. Arts 11: 83. 1876 , Roof: Leafl. W. Bot 9: 218. 1962 ,
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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