Phialanthus is a genus of flowering plants in the coffee family, Rubiaceae. There are about 20 species, 17 of which occur in Cuba.
Species include:
Phialanthus acunaePhialanthus alainiiPhialanthus bisseiPhialanthus ellipticusPhialanthus glaberrimusPhialanthus grandifoliusPhialanthus guantanamensisPhialanthus hispaniolaePhialanthus inflatusPhialanthus jamaicensis Urb.Phialanthus linearisPhialanthus linerarisPhialanthus macrocalyxPhialanthus macrostemonPhialanthus marianusPhialanthus myrtilloidesPhialanthus oblongatusPhialanthus parvifoliusPhialanthus peduncularisPhialanthus resinifluusPhialanthus revolutus Urb.Phialanthus rigidusPhialanthus stillans