The Collaborative International Dictionary of English v.0.48:

Palmales \Palmales\ prop. n.
   A natural family of chiefly tropical trees and shrubs
   coextensive with the family Palmae; -- the palms.

   Syn: order Palmales.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Palmales
    n 1: coextensive with the family Palmae: palms [syn: Palmales,
         order Palmales]