• 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 - Perianth tubular at base, the limb spreading, somewhat bilabiate, the upper lobe marked with yellow; stamens 6, inserted on the perianth- tube, the 3 opposite the lower lip included; ovary 3-locular, ripening into a 3-valved, many- seeded capsule; nectaries septal. 6 or 7, New World.