mustard tree

/ˌmʌstərd tri/

Other forms: mustard trees

Definitions of mustard tree

1. noun

   evergreen South American shrub naturalized in United States; occasionally responsible for poisoning livestock
   synonyms: Nicotiana glauca, tree tobacco

   type of:

   tobacco, tobacco plant

   aromatic annual or perennial herbs and shrubs
2. 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
   synonyms: Salvadora persica, toothbrush tree

   type of:

   fruit tree

   tree bearing edible fruit