This is a list of the endemic flora of Puerto Rico. This list is sorted in alphabetical order by binomial names. Common names are in parentheses.

Apocynaceae

Aquifoliaceae

Araliaceae

Asclepiadaceae

Asteraceae

Begoniaceae

Bignoniaceae

Boraginaceae

Bromeliaceae

Buxaceae

Cactaceae

Campanulaceae

Canellaceae

Celastraceae

Clusiaceae

Cyatheaceae

Cyperaceae

Ebenaceae

Ericaceae

Euphorbiaceae

Fabaceae

Flacourtiaceae

Gesneriaceae

Icacinaceae

Lauraceae

Loranthaceae

Magnoliaceae

Malpighiaceae

Malvaceae

Marcgraviaceae

Melastomataceae

Meliaceae

Moraceae

Myrtaceae

Nyctaginaceae

Orchidaceae

Passifloraceae

Phyllanthaceae

Piperaceae

Poaceae

Polygalaceae

Polygonaceae

Polypodiales

Rhamnaceae

Rubiaceae

Salicaceae

Sapindaceae

Sapotaceae

Schizaeaceae

Schoepfiaceae

Selaginellaceae

Simaroubaceae

Solanaceae

Styracaceae

Ternstroemiaceae

Thymelaeaceae

Urticaceae

Verbenaceae

Zamiaceae