Peperomia ciliatifolia is a species of epiphyte in the genus Peperomia that is endemic in Peru. It grows on wet tropical biomes. Its conservation status is Threatened.
The type specimen were collected near Balsapuerto, Peru at an altitude of 150-350 meters.
Peperomia ciliatifolia is a pendulous, tree-dwelling herb that is mostly glabrous except for its leaves, which are sparsely pilose and have a distinctive, stiff ciliate margin. The slender stem is about 2 mm thick. The alternate leaves are elliptic, with an acutely acuminate tip and a rounded to somewhat acute base. They are large, reaching 11 cm in length and 5 cm in width, with a few pairs of pinnate nerves below the middle. When dry, the leaves are thin and translucent. The petiole is barely 10 mm long. The spikes are sympodial, borne in pairs, slender, and up to 150 mm long, with a peduncle scarcely 5 mm long. The berries are oblong to somewhat conical, obliquely truncated by the apical stigma, which is borne on a scutellum.
It was described in 1936 by William Trelease in ', from specimens collected by Ellsworth Paine Killip & Dorothea Eliza Smith. It got its name from the description of the type specimen.
Following subtaxa are accepted.
It is endemic in Peru. It grows on a epiphyte environment and is a herb. It grows on wet tropical biomes.
This species is assessed as Threatened, in a preliminary report.