Vaccinium vitis-idaea
Vaccinium myrtilloides
airelle vigne-d'ida, cowberry, foxberry, lingonberry, mountain cranberry, northern mountain cranberry, partridgeberry
bleuet fausse-myrtille, sour-top blueberry, sourtop, velvet-leaf blueberry, velvetleaf huckleberry
blades pale and glandular abaxially, bright green adaxially, elliptic to obovate, 5–18 × 3–9 mm, glaucous-coriaceous, margins entire, slightly revolute.
deciduous;
blade green, elliptic, 23–35 × 8–16 mm, membranous to subcoriaceous, margins entire, surfaces ± densely hairy (sometimes mostly on veins), eglandular, sometimes glabrescent.
4–6 mm.
corolla pinkish white, 3–5 mm;
filaments puberulent.
calyx green, glabrous, (eglandular);
corolla greenish white to pink, urceolate, 3–5 mm, (eglandular);
filaments usually hairy.
red, 8–10 mm diam. 2n = 24.
blue, glaucous, 6–8 mm diam., glabrous.
10–40, ca. 1 mm.
= 24.
Vaccinium vitis-idaea
Vaccinium myrtilloides
The distribution of Vaccinium vitis-idaea in North America extends from northwestern Greenland at 77° north latitude, south to Connecticut at 42° north latitude, and from 45° west longitude (southern tip of Greenland) west to 170° west longitude (Aleutian Islands); it is rare in Connecticut (not collected since the late 1800s), Massachusetts, Vermont, and Wisconsin. This species has been erroneously reported from New York; it hybridizes with V. myrtillus in northern Europe, producing V. ×intermedium Ruthe. The hybrid might be anticipated in North America, but the two species are not known to occur together anywhere in the flora area.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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