Cor tubular or funnelform, mostly conspicuous, deeply or shallowly 5-lobed, often bilabiate with a 4-lobed and a 1-lobed lip, the tube often gibbous or spurred at base; cal short, 5-toothed; stamens 5; ovary 2-3-locular with several ovules per locule; style elongate; stigma capitate; fr a few-seeded berry; erect shrubs or trailing or twining vines, with simple, mostly entire lvs; infl terminal, of 1-few 6-fld whorls, or axillary, the peduncles then bearing a pair of terminal sessile fls, their ovaries sometimes united. 180, N. Hemisphere. (Nintooa, Phaenanthus, Xylosteon)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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