mustard-tree
Nouns
- (n) evergreen South American shrub naturalized in United States; occasionally responsible for poisoning livestock Nicotiana glauca, tree tobacco,
- (n) glabrous or pubescent evergreen shrub or tree of the genus Salvadora; twigs are fibrous and in some parts of the world are bound together in clusters and used as a toothbrush; shoots are used as camel fodder; plant ash provides salt Salvadora persica, toothbrush tree,