what is a yaupon
Definition of YAUPON. : a holly (Ilex vomitoria) of the southeastern United States that has smooth elliptical leaves with emetic and purgative properties.ADVERTISEMENT.Catawba yÄÌpÄ, from yÄ- tree + pÄ leaf. a holly (Ilex vomitoria) of the southeastern United States that has smooth elliptical leaves with emetic and purgative properties. ADVERTISEMENT. Catawba yÄÌpÄ, from yÄ- tree + pÄ leaf.