Hercules'-club

(hûrˈkyə-lēz)

1. A tree or shrub (Aralia spinosa) of the southeast United States, having prickly, bipinnately compound leaves and large clusters of small white flowers. Also called angelica tree, devil's walking stick, prickly ash.
2. A spiny shrub or tree (Zanthoxylum clava-herculis) of the central and southeast United States, having terminal panicles of small greenish-yellow flowers and pinnately compound leaves. Also called pepperwood, Southern prickly ash.