Saltbush scrub is a Mojave Desert plant community and vegetation type, found above and beyond the alkali sink Shadscale scrub type.
Halophyte plants must deal with salt in the soil, but in less high concentrations than are found in the alkali sink shadscale scrub zone. Alkali sink vegetation grades into saltbrush scrub.
Flora
Common species include members of the goosefoot family (Chenopodiaceae), such as:
The shadscale scrub community vegetation also has these Chenopodiaceae family species, but is found at higher elevations.
References
Saltbush scrub Wikipedia(Text) CC BY-SA