Source : Webster's Revised Unabridged Dictionary (1913)

Chufa \Chu"fa\, n. [Sp.] (Bot.)
   A sedgelike plant ({Cyperus esculentus}) producing edible
   tubers, native about the Mediterranean, now cultivated in
   many regions; the earth almond.

Source : WordNet®

chufa
     n : European sedge having small edible nutlike tubers [syn: {yellow
         nutgrass}, {earth almond}, {ground almond}, {rush nut}, {Cyperus
         esculentus}]