The 12 tree species are: ''Barringtonia asiatica'' (fish-poison tree), ''Calophyllum inophyllum'' (Alexandrian laurel), ''Cocos nucifera'', ''Cordia subcordata'', ''Guettarda speciosa'', ''Intsia bijuga'', ''Hernandia sonora'', ''Morinda citrifolia'', ''Neisosperma oppositifolium'', ''Pisonia grandis'', ''Terminalia catappa'', and ''Heliotropium foertherianum''. Another three tree species are common, and may be native, but they may also have been introduced by humans: ''Casuarina equisetifolia'', ''Hibiscus tiliaceus'', and ''Pipturus argenteus''.