1. Also called greasewood. a shrubby plant, Salvia apiana, of the mint family, native to southern California, having white, hairy foliage and spikes of white or pale lavender flowers.
2. an aromatic, composite plant, Artemisia ludoviciana, of western North America, having leaves with a downy white undersurface.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.