noun
1.
a. : a prickly aromatic shrub or small tree ( Zanthoxylum americanum ) with yellowish flowers appearing with the pinnate leaves
b. : hercules'-club 1a
2. or prickly elder : hercules'-club 3
3. : an Australian tree ( Orites excelsa ) of the family Proteaceae having alternate lanceolate or obovate leaves, slender axillary spikes of flowers, and woody follicles