Cornutia obovataCornutia obovata Urban - Nigua. Listed by the U.S. FWS as endangered, the FWS local name is Palo de nigua (=capá jugüerilla) and the FWS range is: U.S.A. (PR). FWS Listing information: volume 53 Federal Register 11612; April 7, 1988. More information available from the Center For Plant Conservation.