Flora of North America species comparison

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Arctostaphylos pringlei

Arctostaphylos viridissima

Pringle manzanita, yellowleaf manzanita

Mcminn's manzanita, white-hair manzanita
Habit Shrubs, erect, 1–5 m; burl absent; twigs densely short glandular-hairy. Shrubs, erect, 1–4 m; burl absent; twigs short-hairy with longer, white hairs.
Leaves

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.

petiole 1–4 mm;

blade dark green, shiny, narrowly ovate to oblong-ovate, 2–3.5 × 1.5–2.5 cm, base truncate to ± auriculate-clasping, margins entire, plane, surfaces smooth, puberulent, glabrescent.
Inflorescences

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.

racemes, simple or 1-branched;

immature inflorescence pendent, (branches ± concealed by bracts), axis 1–1.5 cm, 1+ mm diam., short-hairy with long, white hairs;

bracts not appressed, (crowded), leaflike, lanceolate, 6–10 mm, apex acute, surfaces lightly hairy.
Pedicels

5–15 mm, finely glandular-hairy.

2–3 mm, sparsely hairy.
Flowers

corolla white to pink, conic to urceolate;

ovary glandular-hairy.

corolla white, conic to urceolate;

ovary densely white-hairy.
Fruits

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

subglobose, 10–15 mm diam., sparsely hairy or glabrous.
Stones

distinct or connate.

distinct.
2n

= 26.

Arctostaphylos pringlei

Arctostaphylos viridissima
Phenology Flowering winter–early spring.
Habitat Island chaparral, open forests
Elevation 100-600 m (300-2000 ft)
Distribution
from FNA
AZ; CA; NV; UT; nw Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

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

Of conservation concern.

Arctostaphylos viridissima is known from siliceous shale on the eastern part of Santa Cruz Island.

(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. 427. FNA vol. 8, p. 433.
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. 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. 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. viscida
Subordinate taxa
A. pringlei subsp. drupacea, A. pringlei subsp. pringlei
Synonyms A. pechoensis var. viridissima
Name authority Parry: Bull. Calif. Acad. Sci. 2: 494. 1887 , (Eastwood) McMinn: Man. Calif. Shrubs, 419. 1939 ,
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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