• 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 perfect; receptacle elevated, convex or globose; sep 3, persistent, sometimes accrescent; pet 3, white, deciduous; stamens 6–30; filaments elongate; pistils borne in several series and aggregated into a globose head; achenes turgid, evenly ribbed or ridged; scape erect or prostrate, bearing an infl of 1–many verticils of fls, sometimes branched from the lower verticils; verticils 3-bracted and commonly with additional bracteoles. (Helianthium) 20+, widespread, mainly tropical.

  • Common Names