Source : Webster's Revised Unabridged Dictionary (1913)

Amentiferous \Am`en*tif"er*ous\, a. [L. amentum + -ferous.]
   (Bot.)
   Bearing catkins. --Balfour.

Source : WordNet®

amentiferous
     adj : (of plants) bearing or characterized by aments or catkins
           [syn: {amentaceous}]