The elliptic leathery leaves are 13 to 18 centimeters long and 6 to 8 centimeters wide, almost stalkless, hairless, dull dark green on the upper surface, and light green beneath.
Blades contain many slender, slightly raised side veins, forming a prominent network.
The flowers are produced on the trunks, with slender, nearly equal stalks. Flowers have a four-lobed calyx, four rounded light pink petals 3 millimeters long and numerous stamens. The fruit is a dark red, round berry containing a 1.6-centimeter seed. Little is known about the life history and reproductive biology of this species. Uvillo is endemic to the island of Puerto Rico where it is currently known from five localities in the Sierra de Luquillo and the Sierra de Cayey.