Flora of North America species comparison

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Arctostaphylos sensitiva

Arctostaphylos pringlei

coinleaf manzanita, dwarf manzanita, glossyleaf manzanita

Pringle manzanita, yellowleaf manzanita
Habit Shrubs, erect or mound-forming, 1–2 m; burl absent; bark on older stems red, smooth; twigs densely short-haired with longer gland-tipped hairs. Shrubs, erect, 1–5 m; burl absent; twigs densely short glandular-hairy.
Leaves

bifacial in stomatal distribution;

petiole 1–3 mm;

blade light green abaxially, dark green adaxially, shiny, orbiculate to orbiculate-ovate, 1–2.2 × 0.8–1.8 cm, base truncate to ± lobed, margins entire, cupped, surfaces smooth, glabrous, midvein hairy.

petiole 5–10 mm;

blade gray-glaucous, dull, elliptic, ovate, or ± orbiculate, 2–5 × 1–4 cm, base rounded, truncate, or ± lobed, margins entire, plane, surfaces papillate, scabrous, finely glandular-hairy.
Inflorescences

panicles, 4–8-branched;

immature inflorescence pendent, branches spreading, axis 0.5–1 cm, to 1 mm diam., densely short-hairy with longer gland-tipped hairs;

bracts appressed, scalelike, deltate, 0.5–2 mm, apex acute, surfaces glabrous.

racemes, simple or 1-branched;

immature inflorescence (developing late), pendent or erect, (concealed by bracts), axis 1–1.5 cm, 1+ mm diam., densely short glandular-hairy;

bracts deciduous after flowering, (crowded), appressed, (bright pink), leaflike, lanceolate, 6–10 mm, apex acute, surfaces densely glandular-hairy.
Pedicels

3–5 mm, glabrous.

5–15 mm, finely glandular-hairy.
Flowers

4-merous;

corolla white to pink, urceolate;

ovary white-hairy.

corolla white to pink, conic to urceolate;

ovary glandular-hairy.
Fruits

subcylindric, 3–4 mm diam., glabrous.

globose, 6–12 mm diam., finely glandular-hairy, (viscid).
Stones

distinct (breaking apart in mature fruit).

distinct or connate.
2n

= 26.

Arctostaphylos sensitiva

Arctostaphylos pringlei
Phenology Flowering winter–early spring.
Habitat Sandstone uplands in maritime chaparral or closed-cone conifer forests near coast
Elevation 100-600 m (300-2000 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; NV; UT; nw Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos sensitiva occurs in Marin, San Mateo, and Santa Cruz counties.

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

Subspecies 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Stones distinct.
subsp. pringlei
1. Stones connate into single sphere.
subsp. drupacea
Source FNA vol. 8, p. 418. FNA vol. 8, p. 427.
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. purissima, A. rainbowensis, A. refugioensis, A. regismontana, A. rudis, 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. parryana, A. patula, A. pechoensis, A. pilosula, 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. pringlei subsp. drupacea, A. pringlei subsp. pringlei
Synonyms A. nummularia subsp. sensitiva, A. nummularia var. sensitiva
Name authority Jepson: Madroño 1: 85. 1922 , Parry: Bull. Calif. Acad. Sci. 2: 494. 1887 ,
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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