It also helps that I've grown a copule of these, so it was an educated guess made form a bit of experience.
i rarely if ever go by common names like "Butterfly Orchid" because common names can be different fo rthe same plant in different geographical regions or many different orchids can be referred to by the same common name. Too much confusion and inaccuracy for my taste so I always use the scientific name.
i could be wrong about the location of the plant or perhaps I am confusingit wiht another plant. if you have reliable info that says Enc. tampsnsis is native to Florida go with it. And it looks like I have learned somethign today too!