old man saltbush
/ˌəʊl(d) ˌman ˈsɔːltbʊʃ/ /ˌəʊl(d) ˌman ˈsɒltbʊʃ/Australian
noun
Either of two Australian shrubs of the family Chenopodiaceae, Atriplex nummularia, used as fodder for sheep in dry areas, and (occasionally) Rhagodia parabolica.
Origin
Late 19th century. From old man + salt bush.