- a prickly tree, Zanthoxylum clava-herculis, of the rue family, having a medicinal bark and berries.
- a prickly shrub, of the ginseng family, Aralia spinosa, having a medicinal bark and root.
- a prickly North American araliaceous shrub, Aralia spinosa, with medicinal bark and leaves
- a prickly North American rutaceous tree, Zanthoxylum clava-herculis, with medicinal bark and berries
