Flora of North America species comparison

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Arctostaphylos purissima

Arctostaphylos andersonii

La Purisima manzanita, La Purissima manzanita

Anderson's manzanita, Santa Cruz manzanita
Habit Shrubs, erect, 1–4 m; burl absent; twigs densely short-hairy with longer hairs. Shrubs or trees, erect, (arborescent), 2–5 m; burl absent; twigs densely short-hairy with long, white, gland-tipped hairs.
Leaves

petiole to 2 mm;

blade bright green, shiny, orbiculate-ovate to ± orbiculate, 1–2.5 × 1–2 cm, base auriculate-clasping, margins entire, plane, surfaces smooth, glabrous.

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.
Inflorescences

racemes, simple or 1–2-branched;

immature inflorescence pendent, (branches dense, concealed by bracts), axis 0.5–1 cm, 1+ mm diam., densely short-hairy with longer hairs;

bracts not appressed, (overlapping), leaflike, ovate to lanceolate-ovate, 5–8 mm, apex acute, surfaces glabrous.

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.
Pedicels

3–5 mm, sparsely hairy or glabrous.

6–8 mm, finely glandular-hairy.
Flowers

corolla white, conic to urceolate;

ovary glabrous.

corolla white, conic;

ovary finely glandular-hairy.
Fruits

depressed-globose, 5–8 mm diam., glabrous.

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

distinct.

distinct.
2n

= 26.

= 26.

Arctostaphylos purissima

Arctostaphylos andersonii
Phenology Flowering winter–early spring. Flowering winter–early spring.
Habitat Maritime chaparral on deep, sandy soils Chaparral, edges of open forests
Elevation 0-100 m (0-300 ft) 300-900 m (1000-3000 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos purissima is known from hills and mesas near the coast (Burton Mesa) in Santa Barbara County.

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

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.)
Source FNA vol. 8, p. 434. FNA vol. 8, p. 432.
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. 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. 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. 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
Name authority P. V. Wells: Madroño 19: 195. 1968 , A. Gray: Proc. Amer. Acad. Arts 11: 83. 1876 ,
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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