Flora of North America species comparison

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Arctostaphylos insularis

Arctostaphylos parryana

island manzanita

Parry manzanita, Parry's manzanita
Habit Shrubs, erect, (arborescent), 2–5 m; burl absent; (lower stems reddish with glaucous patches); twigs glabrous, sometimes sparsely short-hairy or sparsely glandular-hairy. Shrubs, prostrate, erect, or mound-forming, 0.5–2 m; burl present or absent; twigs sparsely to moderately short-hairy.
Leaves

bifacial in stomatal distribution;

petiole 4–8 mm;

blade bright green, lustrous, oblong-elliptic, 2.5–4.5 × 1–3 cm, base rounded, margins entire, ± cupped, surfaces smooth, glabrous.

petiole 5–10 mm;

blade bright green or gray-glaucous, usually shiny, sometimes dull, oblong-ovate to wide-elliptic, 2.5–5 × 1.5–2.5 cm, base obtuse to truncate, margins entire, plane, surfaces smooth, glabrous or sparsely puberulent.
Inflorescences

panicles, 5–10-branched;

immature inflorescence pendent, branches spreading, ascending, or erect, axis 2–3 cm, 1+ mm diam., glabrous, sometimes sparsely short-hairy or sparsely glandular-hairy, (buds ± spread apart);

bracts not appressed, scalelike, deltate, 1.5–3 mm, apex acute, surfaces finely glandular-hairy.

panicles, 3–5-branched;

immature inflorescence pendent, branches spreading, axis 0.5–1.5 cm, 1+ mm diam., sparsely to moderately short-hairy;

bracts ± appressed, scalelike, deltate to wide-ovate, 2–4 mm, apex mucronate, surfaces glabrous.
Pedicels

6–9 mm, finely glandular-hairy.

4–9 mm, glabrous.
Flowers

corolla white, conic to urceolate;

ovary glabrous or sparsely glandular-hairy.

corolla white, conic to urceolate;

ovary glabrous.
Fruits

depressed-globose, 8–15 mm diam., sparsely hairy or glabrous.

globose, 7–10 mm diam., glabrous.
Stones

distinct.

connate into single sphere.
2n

= 26.

Arctostaphylos insularis

Arctostaphylos parryana
Phenology Flowering winter–early spring.
Habitat Island chaparral and woodlands
Elevation 200-400 m (700-1300 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos insularis is known from Santa Cruz Island.

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

Subspecies 3 (3 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Leaf blades gray-glaucous, dull; burls present.
subsp. desertica
1. Leaf blades bright green, shiny; burls present or absent
→ 2
2. Burls absent.
subsp. parryana
2. Burls present.
subsp. tumescens
Source FNA vol. 8, p. 422. FNA vol. 8, p. 420.
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. 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. 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. 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
Subordinate taxa
A. parryana subsp. desertica, A. parryana subsp. parryana, A. parryana subsp. tumescens
Synonyms A. insularis var. pubescens
Name authority Greene ex Parry: Bull. Calif. Acad. Sci. 2: 494. 1887 , Lemmon: Pittonia 2: 68. 1890 ,
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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