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airelle gazonnante, dwarf bilberry, dwarf blueberry, dwarf huckleberry

bleuet fausse-myrtille, sour-top blueberry, sourtop, velvet-leaf blueberry, velvetleaf huckleberry

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 ± open colonies, 1–11.5 dm; twigs greenish brown, terete, pilose or hairy.
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 green, elliptic, 23–35 × 8–16 mm, membranous to subcoriaceous, margins entire, surfaces ± densely hairy (sometimes mostly on veins), eglandular, sometimes glabrescent.

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, glabrous, (eglandular);

corolla greenish white to pink, urceolate, 3–5 mm, (eglandular);

filaments usually hairy.

Berries

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

blue, glaucous, 6–8 mm diam., glabrous.

Seeds

ca. 1 mm.

10–40, ca. 1 mm.

2n

= 24.

= 24.

Vaccinium cespitosum

Vaccinium myrtilloides

Phenology Flowering late spring-mid summer. Flowering late spring–early summer.
Habitat Open, usually dry habitats, from lowland to subalpine areas Open or disturbed sites in boreal forest, muskegs, bogs, barrens, headlands, outcrops, mountain meadows
Elevation 0-4500 m (0-14800 ft) 0-1700 m (0-5600 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
CT; IA; IL; IN; MA; ME; MN; MT; NH; NY; OH; PA; VT; WI; WV; AB; BC; LB; MB; NB; NS; NT; ON; PE; QC; SK
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 8, p. 524. FNA vol. 8, p. 529.
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. boreale, V. cespitosum, V. corymbosum, V. crassifolium, V. darrowii, V. deliciosum, V. erythrocarpum, V. hirsutum, V. macrocarpon, V. membranaceum, V. myrsinites, 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 Cyanococcus canadensis, V. angustifolium var. myrtilloides, V. canadense
Name authority Michaux: Fl. Bor.-Amer. 1: 234. 1803 , Michaux: Fl. Bor.-Amer. 1: 234. 1803 ,
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