Definitions for saltbushˈsɔltˌbʊʃ
Random House Webster's College Dictionary
any of various plants or shrubs belonging to the genus Atriplex, of the goosefoot family, that have mostly alternate leaves and clusters of inconspicuous flowers, often growing in saline or alkaline soil.
Origin of saltbush:
any of various shrubby plants of the genus Atriplex that thrive in dry alkaline soil
Any of the genus Atriplex of plants, including many desert and seashore plants and halophytes.
an Australian plant (Atriplex nummularia) of the Goosefoot family