Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Arctostaphylos montana

Arctostaphylos confertiflora

Mt. Tamalpais manzanita

Santa Rosa Island manzanita
Habit Shrubs, erect, prostrate, or mound-forming, 0.1–2 m; burl absent; twigs densely white short-hairy. Shrubs, erect, prostrate, or mound-forming, 0.1–2 m; burl absent; twigs densely short-hairy with long, white, glandular hairs.
Leaves

petiole 2–6 mm;

blade dark green, shiny, orbiculate-elliptic to elliptic, 1–2.5 × 1–1.5 cm, base rounded to cuneate, margins entire, plane, surfaces smooth, puberulent, glabrescent.

(overlapping);

petiole 4–10 mm;

blade light green, dull, ovate to elliptic, 4–6 × 2–3 cm, base cuneate to ± rounded, margins entire, cupped, surfaces ± papillate, finely scabrous, glandular-puberulent, ± glandular-hairy proximally.
Inflorescences

panicles, 1–3-branched;

immature inflorescence pendent, (branches compact), axis 0.5–1.5 cm, 1+ mm diam., densely white short-hairy;

bracts tightly appressed, scalelike, ovate, 2–5 mm, apex acuminate, surfaces glabrous.

panicles, 3–5-branched;

immature inflorescence pendent, branches spreading, axis 1.5–2 cm, 1+ mm diam., densely short-hairy with long, white, glandular hairs;

bracts not appressed, (crowded), (± densely overlapping near tips), (green), leaflike, ovate to oblanceolate, 8–18 mm, apex acute, surfaces finely glandular-hairy.
Pedicels

3–6 mm, glabrous.

3–5 mm, finely glandular-hairy.
Flowers

corolla white, conic to urceolate;

ovary glabrous.

corolla white, conic to urceolate;

ovary densely white-hairy, sparsely glandular.
Fruits

globose, 4–8 mm diam., glabrous.

depressed-globose, 8–11 mm diam., sparsely hairy.
Stones

distinct.

distinct.
2n

= 26.

Arctostaphylos montana

Arctostaphylos confertiflora
Phenology Flowering winter–early spring.
Habitat Island chaparral, open, closed-cone conifer forests
Elevation 0-500 m (0-1600 ft)
Distribution
from USDA
wc Calif
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Subspecies 2 (2 in the flora).

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

Of conservation concern.

Arctostaphylos confertiflora is found on Santa Rosa Island.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Fruits 6-8 mm diam.; plants mound-forming or erect; leaf blades orbiculate-elliptic to elliptic, 1-2.5 × 1-1.5 cm; young twigs white-tomentose.
subsp. montana
1. Fruits 4-5 mm diam.; plants prostrate; leaf blades orbiculate-elliptic, 1-2 × 1-1.5 cm; young twigs gray-tomentose.
subsp. ravenii
Source FNA vol. 8, p. 436. FNA vol. 8, p. 428.
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. 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. 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. montana subsp. montana, A. montana subsp. ravenii
Synonyms A. hookeri subsp. montana, A. pungens var. montana A. subcordata var. confertiflora
Name authority Eastwood: Proc. Calif. Acad. Sci., ser. 3, 1: 83. (1897) Eastwood: Leafl. W. Bot. 1: 122. 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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

The species comparison tool is brought to you by:
Northwest Wildflowers