• Authority

    Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

  • Family


  • Scientific Name


  • Description

    Genus Description - Fls 4-merous; cal-tube short, campanulate, with foliaceous lobes; cor (in ours) nearly tubular to somewhat narrowed distally, lobed to below the middle, prolonged at base (at least in some fls) into short, divergently retrorse spurs; stamens at the summit of the cor- tube, shorter than the lobes; ovary conic, gradually tapering to the short style; stigma 2-lobed; fr lanceolate, acute; herbs with opposite or basal lvs and small fls in cymose clusters terminating the stem and branches or forming a somewhat thyrsoid infl. 100, mainly New World.