Flora of North America species comparison

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Vaccinium myrtillus

Vaccinium erythrocarpum

bilberry, dwarf bilberry, dwarf blueberry, low bilberry, low blueberry, myrtle blueberry, whortleberry

dingleberry, southern mountain cranberry
Habit Plants forming open colonies, 0.5–12 dm, rhizomatous; twigs green, conspicuously 3-angled, glabrous or minutely puberulent along grooves.
Leaf

blades bright green, broadly elliptic or ovate, 19–27 × 7–11 mm, margins sharply serrate, surfaces laxly glandular abaxially.

Flowers

calyx green, lobes ± recurved (or absent and margins of tube sinuate), deltate, 0.4–0.6 mm, glabrous;

corolla pink, cream, or greenish white, globose, 3–5 × 5–7 mm, thin, glaucous;

filaments glabrous.

Berries

purple-black or bluish black, rarely reddish or red, 7–9 mm diam.

Seeds

ca. 1 mm.

e

United States
2n

= 24, 48.

Vaccinium myrtillus

Vaccinium erythrocarpum
Phenology Flowering late spring–summer.
Habitat Heaths, montane heaths, boggy barrens, degraded meadows, open coniferous forests, oak parklands, disturbed or open birch woods, hummocky seepage slopes, moraines
Elevation 0-2600 m (0-8500 ft)
Distribution
from FNA
AZ; CO; ID; MT; NM; NV; OR; UT; WA; AB; BC; Greenland; Europe; e Asia (Japan)
[WildflowerSearch map]
[BONAP county map]
from FNA
GA; NC; TN; VA; WV; se Asia
[WildflowerSearch map]
[BONAP county map]
Discussion

Vaccinium myrtillus fruits are popular in Europe and are known to possess antioxidants and other compounds beneficial to vascular health. Berries in Europe are extensively harvested from wild stands. In North America, the fruits were used by the Kootenai, Carrier, Shuswap, and other native tribes. The small plant and fruit sizes create challenges for commercialization in North America.

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

Subspecies 2 (1 in the flora).

Subspecies japonicum (Miquel) Kloet [V. japonicum Miquel] is disjunct in southeastern Asia (S. P. Vander Kloet and B. A. Bohm 1991).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 523. FNA vol. 8, p. 517.
Parent taxa Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Myrtillus Ericaceae > subfam. Vaccinioideae > Vaccinium > sect. Oxycoccoides
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. 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. 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
Subordinate taxa
V. erythrocarpum subsp. erythrocarpum
Synonyms V. myrtillus subsp. oreophilum, V. myrtillus var. oreophilum, V. oreophilum Hugeria erythrocarpa, Oxycoccus erectus
Name authority Linnaeus: Sp. Pl. 1: 349. (1753) Michaux: Fl. Bor.-Amer. 1: 227. (1803)
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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