Colonial shrubs 2-5 dm; bud-scales sharply acute; lvs thin and soft, elliptic to lance-elliptic, 1-3(-4) cm, half or a third as wide, entire, softly hairy beneath, not glaucous; cor broadly cylindric, 4-5 mm, white or tinged with pink; fr blue- glaucous, 4-7 mm; 2n=24. Moist or dry soil and bogs; Lab. to B.C., s. to Pa., Ind., ne. Io., and Minn., and in the mts. to Va. and W.Va. May-July. (V. canadense; Cyanococcus c.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.