Peperomia crassulicaulis 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 Carpapata, Peru at an altitude of 2400 meters.
Peperomia crassulicaulis is a glabrous, succulent, somewhat shrubby plant. Its erect stems are 3âÂÂ4 mm thick, sparsely branched above, but arise in large numbers from a thick (up to 2 cm) yellowish base, with short internodes. The leaves are in whorls of 6 at the nodes. They are elliptical, with a slightly notched tip and an acute base, measuring 10 mm long and 4âÂÂ5 mm wide. When dry, they are hard, somewhat revolute, opaque with obscure venation, and have a minutely granular underside. The petiole is 2 mm long. The terminal spikes are 140 mm long and 4 mm thick, with loosely inserted flowers, and are borne on a 15 mm peduncle. The flowers are immersed in small pits on the rachis. The ovary is ovoid with an oblique stigma.
It was described in 1936 by William Trelease in ', from specimens collected by Ellsworth Paine Killip & Dorothea Eliza Smith. It got its epithet from the resemblance to plants in the family Crassulaceae.
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.