Two-toed amphiuma _Amphiuma means_ Greater siren _Siren lacertina_ Everglades dwarf siren _Pseudobranchus striatus belli_ Peninsula newt _Notophthalmus viridescens_ Eastern spadefoot toad _Scaphiophus holbrooki_ Greenhouse frog _Eleuthrodactylus planirostris_* Southern toad _Bufo terrestris_ Oak toad _Bufo quercicus_ Florida cricket frog _Acris gryllus_ Green treefrog _Hyla cinerea_ Squirrel treefrog _Hyla squirella_ Cuban treefrog _Osteopilus septentrionalis_* Little grass frog _Limneaodus ocularis_ Florida chorus frog _Pseudacris nigrita_ Eastern narrow-mouth toad _Gastrophyne carolinesis_ Pig frog _Rana grylio_ Southern leopard frog _Rana spenocephala_ Checklist of Trees and Tree-like Plants A tree is defined here as a woody plant at least 12 feet high with a single trunk 2 inches or more in diameter at breast height. A tree-like plant is one with the general shape and size of a tree, but one which is not woody or otherwise fails to meet the definition. The arrangement of families is generally the same as that of Small’s _Manual of Southeastern Flora_ (1933) and Long and Lakela’s _A Flora of Tropical Florida_ (1971). Genera and species are listed alphabetically in each family. Nomenclature follows Avery and Loope, _Plants of Everglades National Park: A Preliminary Checklist of Vascular Plants_ (1983). In the checklist, the introduced species are followed by a symbol, key below, that describes the plants’ success in the Everglades. Native plants list only their name. We Well established. An exotic plant that has become widely naturalized, with a large population. Sl Slightly naturalized. An exotic plant that has a small foothold, often found near a mature tree that acts as a seed source. Pr Persistent. An exotic plant that goes on living for a long time after it is planted, and that may appear to be native or naturalized. Sm Small, rarely tree-sized. A plant that may sometimes become a tree, but that often does not meet the definition. Cu Cultivated only. Known only as a cultivated species, but which is retained on this list because either Small or Long and Lakela treat it as native or naturalized. PINE FAMILY: _PINACEAE_ South Florida Slash Pine _Pinus elliottii_ var. _densa_ BALD CYPRESS FAMILY: _TAXODIACEAE_ Pond cypress _Taxodium ascendens_ Bald cypress _Taxodium distichum_ PALM FAMILY: _ARECACEAE_ Paurotis palm _Acoelorraphe wrightii_ Silver palm _Coccothrinax argentata_ Coconut _Cocos nucifera_ Sl Royal palm _Roystonea elata_ Cabbage palm _Sabal palmetto_ Saw palmetto _Serenoa repens_ Thatch palm _Thrinax radiata_ CENTURY PLANT FAMILY: _AGAVACEAE_ False sisal _Agave decipiens_ Sisal _Agave sisalana_ We Spanish dagger _Yucca aloifolia_