Hercules'-club

noun

Her·​cu·​les'-club ˈhər-kyə-ˌlēz-ˌkləb 

1

: a small prickly eastern U.S. tree (Aralia spinosa) of the ginseng family with large compound leaves

called also angelica tree

2

: a small prickly southern U.S. tree (Zanthoxylum clava-herculis) of the rue family

Word History

First Known Use

1847, in the meaning defined at sense 1