Flora of North America species comparison

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Vaccinium cespitosum

Vaccinium boreale

airelle gazonnante, dwarf bilberry, dwarf blueberry, dwarf huckleberry

bleuet boréal, northern blueberry, sweet hurts
Habit Plants forming dense colonies, 0.3–6 dm, superficially rhizomatous; twigs yellow-green, reddish green, or reddish brown, terete to somewhat angled, finely puberulent or, rarely, glabrous. Plants forming small, dense colonies, 0.1–0.9 dm, (superficially rhizomatous); twigs green, (delicate), angled, (intricately branched), hairy in lines.
Leaves

blades green, usually oblanceolate, sometimes obovate or narrowly elliptic, 10–30 × 3–12 mm, margins usually serrulate from apex to at least mid blade, surfaces usually glandular abaxially, usually glabrous adaxially.

deciduous;

blade bright green, narrowly elliptic, 8–21 × 2–6 mm, membranous, margins sharply, uniformly serrate, surfaces usually glabrous, eglandular abaxially.
Flowers

calyx pale green, lobes vestigial, glabrous;

corolla white, white with pink striping, or pink, cylindric-urceolate to globose, 4–7 × 3–5 mm, thin, glaucous;

filaments glabrous.

calyx green, glaucous, glabrous (sometimes ciliate);

corolla white to greenish white, cylindric, 3–4 mm;

filaments ciliate.
Berries

usually blue, glaucous, rarely dull black, 5–9 mm diam.

blue, glaucous, 3–5 mm diam., glabrous.
Seeds

ca. 1 mm.

10–30, ca. 1.1 mm.
2n

= 24.

= 24.

Vaccinium cespitosum

Vaccinium boreale
Phenology Flowering late spring-mid summer. Flowering late spring–early summer.
Habitat Open, usually dry habitats, from lowland to subalpine areas Headlands, open, rocky uplands, alpine heaths and meadows, forest-tundra. 0-2000 m
Elevation 0-4500 m (0-14800 ft)
Distribution
from FNA
AK; CA; CO; ID; ME; MI; MN; MT; NH; NM; NY; OR; VT; WA; WI; WY; AB; BC; MB; NB; NL; NS; NT; NU; ON; QC; SK; YT; Mexico (Chihuahua, Durango, Hidalgo); Central America (Guatemala)
[WildflowerSearch map]
from FNA
ME; NH; NY; VT; NB; NL; NS; QC
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 8, p. 524. FNA vol. 8, p. 528.
Parent taxa Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Myrtillus Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Cyanococcus
Sibling taxa
V. angustifolium, V. arboreum, V. boreale, V. corymbosum, V. crassifolium, V. darrowii, V. deliciosum, V. erythrocarpum, V. hirsutum, V. macrocarpon, V. membranaceum, V. myrsinites, V. myrtilloides, V. myrtillus, V. ovalifolium, V. ovatum, V. oxycoccos, V. pallidum, V. parvifolium, V. scoparium, V. stamineum, V. tenellum, V. uliginosum, V. vitis-idaea
V. angustifolium, V. arboreum, V. cespitosum, V. corymbosum, V. crassifolium, V. darrowii, V. deliciosum, V. erythrocarpum, V. hirsutum, V. macrocarpon, V. membranaceum, V. myrsinites, V. myrtilloides, V. myrtillus, V. ovalifolium, V. ovatum, V. oxycoccos, V. pallidum, V. parvifolium, V. scoparium, V. stamineum, V. tenellum, V. uliginosum, V. vitis-idaea
Synonyms V. arbuscula, V. caespitosum var. arbuscula, V. caespitosum var. paludicola, V. geminiflorum, V. nivictum, V. paludicola
Name authority Michaux: Fl. Bor.-Amer. 1: 234. 1803 , I. V. Hall & Aalders: Amer. J. Bot. 48: 200. 1961 ,
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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