The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
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blue-leaf huckleberry, Cascade bilberry, Cascade blueberry, Cascade huckleberry, Cascades blueberry, Rainier blueberry

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

Habit Plants forming small clumps to extensive open colonies, 0.5–15 dm, rhizomatous; twigs green, sometimes glaucous, ± terete, rarely angled, usually glabrous, rarely hairy along veins or puberulent. Plants forming ± open colonies, 1–11.5 dm; twigs greenish brown, terete, pilose or hairy.
Leaves

blades usually glaucous, obovate, oblanceolate, or, rarely, elliptic, 17–35 × 9–17 mm, margins usually serrate for at least distal 2/3, surfaces usually glabrous, eglandular or, rarely, glandular throughout, often glandular-hairy along midvein.

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 glaucous, lobes indistinct or shallow, glabrous;

corolla pink, creamy pink, or red, globose to globular-urceolate, 4–6 × 5–7 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, sometimes dull black, maroon, or red, 9–13 mm diam.

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

Seeds

ca. 1 mm.

10–40, ca. 1 mm.

2n

= 48.

= 24.

Vaccinium deliciosum

Vaccinium myrtilloides

Phenology Flowering late spring–early summer. Flowering late spring–early summer.
Habitat Alpine meadows, subalpine coniferous woods, talus slopes Open or disturbed sites in boreal forest, muskegs, bogs, barrens, headlands, outcrops, mountain meadows
Elevation 600-2000 m (2000-6600 ft) 0-1700 m (0-5600 ft)
Distribution
from FNA
CA; ID; OR; WA; BC
[WildflowerSearch map]
[BONAP county 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]
Discussion

Vaccinium deliciosum produces especially flavorful berries. Research at the University of Idaho and Washington State University identified 31 aromatic flavor compounds in the fruits. Despite its outstanding flavor and large fruit size, it is harvested less than is V. membranaceum because it has a smaller range and is less abundant there than its black-fruited congener. Also, like V. membranaceum, V. deliciosum is native at higher elevations and can be difficult to grow at low elevations. Although rhizomatous, V. deliciosum has a dense root system and transplants easily.

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

Source FNA vol. 8, p. 523. 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. cespitosum, V. corymbosum, V. crassifolium, V. darrowii, 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 Cyanococcus canadensis, V. angustifolium var. myrtilloides, V. canadense
Name authority Piper: Mazama 2: 103. 1901 , Michaux: Fl. Bor.-Amer. 1: 234. 1803 ,
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