The
type specimen were collected near
Nanay to Altura, Peru.
Peperomia rubea is a creeping, glabrous, reddish, terrestrial herb with erect, leafy branches. The
leaves are in whorls of 2–3 at the nodes. They are narrowly lanceolate, gradually narrowed toward the narrowly rounded apex, with a very acute base, measuring 4–5.5 cm long and about 1 cm wide (or wider). They are
3-nerved, with the nerves impressed above and prominent beneath. The
petiole is 5 mm long. The
inflorescence was not seen on the type specimen. ==Taxonomy and naming==