• 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 and lateral pet separate, spreading, similar in color, the pet somewhat wider and shorter; lip declined, not lobed, narrow below the middle, distally expanded, fringed on the margin and bearded on the face; column projecting forward over the lip, its terminal anther deflexed; pollinia 2; perennial from a short rhizome with a cluster of fibrous roots, the erect stem bearing a single lf near the middle, often a long- petioled basal lf, and a terminal bracteal lf subtending the solitary, short-peduncled fl; fls rarely 2. 2–several, irregularly cosmop.