Ceiba pentandra
"Guaiacum officinale", "Coccoloba venosa", "Ceiba pentandra", and "Capparis cynophallophora" are common trees in coastal dry forests. Dry limestone forest species include "Pisonia albida", "Guaiacum sanctum", and "Plumeria alba". "Trichilia triacantha", a federally listed endangered species, is known only from the dry forest zone in southwestern Puerto Rico.