Prickly Yellow, Zanthozylum ekmanii July 25, 2012 · by rathomas49 · in Vascular Plants, What is this?. · Photo by Bob Thomas, Cockscomb Basin Wildlife Sanctuary, Stann Creek District, Belize, May 2003. There are 7 or 8 species of Zanthozylum in Belize. This one has long, flattened spines, so we are calling it Z. ekmanii. Comments from dendrologists? AdvertisementShare this:TwitterFacebookLike this:Like Loading... Related