Flora of North America species comparison

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Arctostaphylos pajaroensis

Arctostaphylos bakeri

Pajaro manzanita

Baker's manzanita
Habit Shrubs, erect or mound-forming, 1–4 m; burl absent; bark on older stems persistent, gray, shredded; twigs short-hairy, sometimes with long hairs. Shrubs, erect, 1–3 m; burl absent; twigs densely glandular-hairy, puberulent, or finely tomentose with sessile glands.
Leaves

bifacial in stomatal distribution;

petiole to 2 mm;

blade light green abaxially, dark blue-green, glaucous adaxially, dull, ovate to triangular-ovate, 2–4 × 1–2 cm, base distinctly lobed, auriculate-clasping, margins (tinged with red), entire, ± cupped, surfaces smooth, glabrous, midvein hairy abaxially.

petiole 3–8 mm;

blade dark green, not glaucous, dull, oblong-ovate to orbiculate-ovate, 2.5–3 × 1.5–2 cm, base usually cuneate, sometimes truncate to rounded, margins entire, plane, surfaces papillate, glandular-hispidulous.
Inflorescences

panicles, 2–5-branched;

immature inflorescence pendent, branches spreading, axis 1–1.5 cm, 1+ mm diam., short-hairy, sometimes with long hairs;

bracts not appressed, leaflike, linear-lanceolate, 5–10 mm, apex acuminate, surfaces glabrous.

panicles, 2–5-branched;

immature inflorescence pendent, branches spreading, axis 1–2 cm, 1+ mm diam., finely glandular-hairy, puberulent, or finely tomentose;

bracts not fully appressed, scalelike, deltate to awl-like, 2–4 mm, apex acute, surfaces finely glandular-hairy, puberulent, or finely tomentose.
Pedicels

5–8 mm, finely hairy or glabrous.

3–5 mm, glabrous.
Flowers

corolla white to pink, urceolate;

ovary densely white-hairy.

corolla white, conic to urceolate;

ovary glabrous.
Fruits

depressed-globose, 6–8 mm diam., sparsely hairy or glabrous.

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

distinct.

distinct.
2n

= 26.

Arctostaphylos pajaroensis

Arctostaphylos bakeri
Phenology Flowering early winter–early spring.
Habitat Maritime chaparral on deep to shallow, sandy soils or sandstone outcroppings
Elevation 0-200 m (0-700 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Arctostaphylos pajaroensis is found in the vicinity of the Pajaro Hills in Monterey County.

(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. Twigs, petioles, rachises, and bracts glandular-hairy; immature inflorescence axes 1-1.5 cm.
subsp. bakeri
1. Twigs, petioles, rachises, and bracts eglandular-hairy, with sessile glands beneath; immature inflorescence axes 1.5-2 cm.
subsp. sublaevis
Source FNA vol. 8, p. 432. FNA vol. 8, p. 439.
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. 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. 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
Subordinate taxa
A. bakeri subsp. bakeri, A. bakeri subsp. sublaevis
Synonyms A. andersonii var. pajaroensis A. stanfordiana subsp. bakeri
Name authority (J. E. Adams) J. E. Adams: J. Elisha Mitchell Sci. Soc. 56: 41. 1940 , Eastwood: Leafl. W. Bot. 1: 115. 1934 ,
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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