culver-s-root
Cul"ver's phys"ic, or Cul"ver's root`. [So called after a Dr. Culver, who used it.] (Bot.) Defn: The root of a handsome erect herb (Leptandra, syn. Veronica, Virginica) common in most moist woods of North America , used as an active cathartic and emetic; also, the plant itself.