1) Bush 2) Shrub 1) Orach 
Saltbush can refer to: Plants called saltbush File:Atriplex canescens habit.jpg|Four-winged saltbush (Atriplex canescens) File:Einadia hastata Brush Farm.JPG|Chenopodium hastatum berries File:Einadia nutans 1.jpg|Chenopodium nutans berries File:Sarcobatus vermiculatus (4018712194).jpg|Cone-like structures containing the female flowers of Sarcobatu...
• (n.) An Australian plant (Atriplex nummularia) of the Goosefoot family.
(from the article `Atriplex`) ...and orach are common names for the group. The leaves of many species often are white and look scurfy or mealy. Several species are salt-tolerant ... The family Chenopodiaceae contains a number of important plants. Species of the saltbush (Atriplex) are extremely tolerant of environments with a ... [7 ...
Salt'bush` noun (Botany) An Australian plant ( Atriplex nummularia ) of the Goosefoot family. 
[n] - any of various shrubby plants of the genus Atriplex that thrive in dry alkaline soil
noun any of various shrubby plants of the genus Atriplex that thrive in dry alkaline soil