Vaccinium uliginosum
Vaccinium corymbosum
airelle des marécages, alpine blueberry, blueberry, bog bilberry, bog blueberry
bleuet en corymbe, high-bush blueberry, highbush huckleberry, New Jersey blueberry, smallflower blueberry, southern blueberry
blades usually glaucous abaxially, green to glaucous adaxially, orbiculate, ovate, or obovate to narrowly elliptic, 8–14 × 3–7 mm, membranous, margins entire, surfaces often faintly puberulent, sometimes hairy throughout.
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.
sepals usually distinct;
corolla white to pink, 3–4(–5) mm, lobes 0.3–0.4 mm;
filaments glabrous.
calyx green, glabrous;
corolla white to pink, ± cylindric, 5–12 mm;
filaments usually ciliate.
blue, 6–8 mm diam., glaucous.
dull black to blue, glaucous, 4–12 mm diam., glabrous.
10–20(–25), ca. 1.2 mm.
= 24, 48, 72.
= 24, 48, 72.
Vaccinium uliginosum
Vaccinium corymbosum
Vaccinium uliginosum is transcontinental in North America between 60° and 70° north latitude; farther north it is rare, especially in the Queen Elizabeth Islands. To the southwest, it is found as far as northern California and northwestern Utah. The summits of the White Mountains of New Hampshire form its southernmost limit in eastern North America. This wide-ranging plant shows considerable variation, notably in floral morphology. Subspecies have been recognized (cf. S. B. Young 1970); a review of morphological variation by H. J. Warr (1981) did not support the distinctiveness of infraspecific taxa.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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.)
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