• 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 - Sep 2; pet 4–6, commonly 5 (more in double-fld forms); stamens 6– many; ovary partly inferior; styles or style-branches (2)3–several; capsule circumscissile near the middle; seeds many; ours succulent annuals with mostly alternate cauline lvs, the uppermost crowded and forming an involucre to the fls, these sessile or nearly so, solitary or glomerate at the ends of the stem and branches. 100+. mostly warm reg.