Flora of North America species comparison

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Vaccinium ovalifolium

Vaccinium corymbosum

airelle à feuilles ovées, Alaska blueberry, early blueberry, oval-leaf blueberry, oval-leaf huckleberry

bleuet en corymbe, high-bush blueberry, highbush huckleberry, New Jersey blueberry, smallflower blueberry, southern blueberry
Habit Plants crown-forming, clumped, suckering when disturbed, rarely forming extensive colonies, 3–40 dm, not rhizomatous; twigs yellow-green or golden brown, glaucous, usually terete, sometimes somewhat angled, glabrous, sometimes hairy in lines. Plants erect, not colonial, sometimes suckering, 10–50 dm; twigs green, angular to terete, usually hairy in lines.
Leaves

blades pale green or glaucous abaxially, slightly darker pale green adaxially, ovate to elliptic, rarely obovate, 25–39 × 16–20 mm, margins entire to obscurely serrate, abaxial surface glabrous, eglandular (sometimes hairy or glandular along midvein), adaxial surface usually glabrous (sometimes hairy and/or glandular).

usually deciduous;

blade dark green, ovate to narrowly elliptic, 15–70 × 10–25 mm, subcoriaceous, margins sharply serrate or entire, surfaces glabrous or hairy abaxially.
Flowers

calyx pale green or glaucous, lobes vestigial or absent, glabrous;

corolla pink, bronze-pink, or greenish white, globose, sometimes urceolate, 5–7 × 4–5 mm, thin, glaucous;

filaments glabrous or pilose basally.

calyx green, glabrous;

corolla white to pink, ± cylindric, 5–12 mm;

filaments usually ciliate.
Berries

blue, dull purplish black, or black, sometimes glaucous, 8–10 mm diam.

dull black to blue, glaucous, 4–12 mm diam., glabrous.
Seeds

ca. 1 mm.

10–20(–25), ca. 1.2 mm.
2n

= 24, 48.

= 24, 48, 72.

Vaccinium ovalifolium

Vaccinium corymbosum
Phenology Flowering spring-mid summer(-late summer). Flowering spring(-early summer).
Habitat Moist or mesic coniferous woods, transitional habitats adjacent to these coniferous stands, cut-over coniferous woods, verges of road cuts, margins of coniferous woods, peaty slopes Open swamps, bogs, sandy margins of lakes, ponds, and streams, flatwoods, gray-birch scrub, pine barrens, mires, bay heads, upland ericaceous meadows, upland woods, ravines, mountain summits
Elevation 0-2100 m (0-6900 ft) 0-1600 m (0-5200 ft)
Distribution
from FNA
AK; ID; MI; OR; SD; WA; AB; BC; NF; NS; ON; QC; YT; e Asia (c Japan, Kamchatka)
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; CT; DE; FL; GA; IL; IN; KY; LA; MA; MD; ME; MI; MO; MS; NC; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WA; WI; WV; BC; NB; NS; ON; QC [Introduced in Europe (Britain, The Netherlands), e Asia (Japan), Pacific Islands (New Zealand)]
[WildflowerSearch map]
[BONAP county map]
Discussion

Every morphological variant of the high-bush blueberry has been named formally at one time or another. At least 25 such taxa have been raised to specific rank; none is distinct throughout its putative range nor has the properties normally associated with biological species, including Vaccinium atrococcum and V. elliottii. See S. P. Vander Kloet (1980) for a complete list of synonyms. Feral populations readily become established wherever cultivars have been planted, e.g., Britain, British Columbia, Japan, Missouri, The Netherlands, New Zealand, Washington, and Wisconsin.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 524. FNA vol. 8, p. 526.
Parent taxa Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Myrtillus 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. myrtilloides, V. myrtillus, 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. 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. alaskaense Cyanococcus amoenus, Cyanococcus atrococcus, Cyanococcus corymbosus, Cyanococcus cuthbertii, Cyanococcus elliottii, Cyanococcus fuscatus, Cyanococcus holophyllus, Cyanococcus margarettae, Cyanococcus simulatus, Cyanococcus virgatus, V. amoenum, V. atrococcum, V. australe, V. constablaei, V. corymbosum var. albiflorum, V. corymbosum var. glabrum, V. elliottii, V. formosum, V. fuscatum, V. simulatum, V. virgatum
Name authority Smith: in A. Rees, Cycl. 36: Vaccinium no. 2. (1817) Linnaeus: Sp. Pl. 1: 350. (1753)
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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