• 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 - Catkins drooping, appearing before the lvs, their scales toothed, lobed, fimbriate, or densely ciliate; each fl set on a cupulate, commonly oblique disk that may be homologous with the "glands" of Salix fls; stamens 5–80, on short filaments; styles 2–4-valved, trees or tall shrubs with soft, light wood, mostly ovate to deltoid, deciduous lvs, scaly, often viscid winter-buds, and elongate catkins that mature before the lvs are fully expanded in the spring. 40, widespread.