1. Also called elk grass. a tall, western North American plant, Xerophyllum tenax, of the lily family, having narrow leaves and a dense, broad cluster of tiny white flowers.
2. any of several other plants having linear, grasslike leaves, as those of the genera Nolina and Dasylirion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.