• 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 4–5-merous; cal without an internal membrane; cal-lobes wholly green; cor marcescent, tubular to funnelform or campanulate, without folds or plaits in the sinuses but sometimes with fimbriate scales at the orifice, and regularly with nectary- glands alternating with the stamens toward the base within; ovary sessile or short-stipitate, the stigmas sessile or on a short, indistinct style; ovules in two rows or bands along the sutures of the ovary; seeds numerous, smooth; glabrous herbs, ours taprooted annuals or biennials with sessile or short-pedicellate fls in thyrsoid to umbelliform cymes. 100, widespread.

  • Common Names