Flora of North America species comparison

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Vaccinium myrtilloides

Vaccinium pallidum

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

Blue Ridge blueberry, Blue Ridge or late low-bush blueberry, hillside blueberry, lowbush blueberry
Habit Plants forming ± open colonies, 1–11.5 dm; twigs greenish brown, terete, pilose or hairy. Shrubs, erect, (3–)4–12(–40) dm, rhizomatous, (twigs of previous year not verrucose).
Leaves

deciduous;

blade green, elliptic, 23–35 × 8–16 mm, membranous to subcoriaceous, margins entire, surfaces ± densely hairy (sometimes mostly on veins), eglandular, sometimes glabrescent.

persistent.
Inflorescences

terminal, racemes, on lateral twigs, on previous year’s shoots or older woody stems.
Pedicels

articulated with calyx tube.
Flowers

calyx green, glabrous, (eglandular);

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

filaments usually hairy.

sepals 5;

petals 4–5, connate for nearly their entire lengths, corolla cylindric or urceolate;

stamens 10, included;

anthers ± without awns, tubules 1–1.5 mm, with terminal pores.
Berries

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

[4-], 5-, [pseudo 8-, or pseudo 10]-locular.
Seeds

10–40, ca. 1 mm.

10–25, (ca. 1 mm).
2n

= 24.

Vaccinium myrtilloides

Vaccinium pallidum
Phenology Flowering late spring–early summer. Flowering mid-late spring.
Habitat Open or disturbed sites in boreal forest, muskegs, bogs, barrens, headlands, outcrops, mountain meadows Dry, open oak or oak- hickory woods, open pine woods, ledges, abandoned farmland or cut-over deciduous forests
Elevation 0-1700 m (0-5600 ft) 0-1600 m (0-5200 ft)
Distribution
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]
from FNA
AL; AR; CT; DC; DE; GA; IL; IN; KS; KY; MA; MD; ME; MI; MO; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; VA; VT; WI; WV; ON
[WildflowerSearch map]
[BONAP county map]
Discussion

The flowers of Vaccinium pallidum are visited primarily by Andrena carlini Cockerell and Bombus spp. This species occasionally hybridizes with V. angustifolium, yielding V. ×dobbinii Burnham.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 529. FNA vol. 8, p. 529.
Parent taxa Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Cyanococcus Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Cyanococcus
Sibling taxa
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
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. myrtilloides, V. myrtillus, V. ovalifolium, V. ovatum, V. oxycoccos, V. parvifolium, V. scoparium, V. stamineum, V. tenellum, V. uliginosum, V. vitis-idaea
Synonyms Cyanococcus canadensis, V. angustifolium var. myrtilloides, V. canadense Cyanococcus liparis, Cyanococcus margarettae, Cyanococcus pallidus, Cyanococcus subcordatus, Cyanococcus tallapusae, Cyanococcus vacillans, V. altomontanum, V. corymbosum var. pallidum, V. margarettae, V. vacillans, V. vacillans var. crinitum, V. vacillans var. missouriense, V. viride
Name authority Michaux: Fl. Bor.-Amer. 1: 234. 1803 , Aiton: Hort. Kew. 2: 10. 1789 ,
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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