Vaccinium uliginosum
Vaccinium macrocarpon
airelle des marécages, alpine blueberry, blueberry, bog bilberry, bog blueberry
American cranberry, canneberge à gros fruits, cranberry, cultivated cranberry, large cranberry
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.
blades glaucous abaxially, green adaxially, usually narrowly elliptic to elliptic, rarely oblong, 5–18 × 2–55 mm, margins entire, slightly revolute.
in axils of leaflike bracts at base of current year’s shoots.
nodding, slender, 2–3 cm, bracteolate;
bracteoles 2, greenish white, scalelike, 1–2 mm wide.
sepals usually distinct;
corolla white to pink, 3–4(–5) mm, lobes 0.3–0.4 mm;
filaments glabrous.
calyx lobes relatively small;
corolla strongly reflexed at anthesis, white to pink;
filaments hairy;
anther tubules 1–2 mm.
blue, 6–8 mm diam., glaucous.
red to pink, 9–14 mm diam., smooth.
= 24, 48, 72.
= 24.
Vaccinium uliginosum
Vaccinium macrocarpon
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.)
Vaccinium macrocarpon is introduced and escaping elsewhere (British Columbia, Oregon, Washington) with respect to its normal range in eastern North America.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
- Local floras:
BC, 
CA, 
OR, 
WA - Local Web sites: CalFlora, CalPhotos,
Flora NW, 
Go Botany, 
IL Wildflowers, 
MD Biodiversity, 
MI Flora, 
MN Wildflowers, 
PNW Herbaria 
WildflowerSearch
iNaturalist (observations)
USDA Plants Database- LBJ Wildflower Center
- SEINet
- Plants of the World Online
- Encyclopedia of Life
- Wikipedia
- Google Image Search
