The Collaborative International Dictionary of English v.0.48:
Aphyllous \Aph"yl*lous\, a. [Gr. ?; 'a priv. + ? leaf.] (Bot.) Destitute of leaves, as the broom rape, certain euphorbiaceous plants, etc. [1913 Webster]WordNet (r) 3.0 (2006):
aphyllous adj 1: having no leaves