Cal deeply parted into narrow segments; cor salverform; anthers connivent and adherent to the stigma; ovaries 2, surrounded at base by 5 nectaries; ovules many; follicles elongate, slender; seeds comose; twining vines with opposite lvs and small, yellow or ochroleucous fls in peduncled axillary cymes. 30, most spp. in e. and s. Asia.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
