mustard tree Meaning, Definition & Usage
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noun evergreen South American shrub naturalized in United States; occasionally responsible for poisoning livestock
Nicotiana glauca; tree tobacco.
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noun 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
toothbrush tree; Salvadora persica.
