Peperomia arctebaccata 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 Pichis Trail, Peru at an altitude of 1100 meters.
Peperomia arcuatispica is a rather large, smooth herb that spreads by stolons, with stems up to 5 mm thick. The leaves are alternate, oblanceolate, and acute, with a cuneate base. They measure 16 to 18 cm in length and 6 cm in width, featuring pinnate venation throughout. When dried, the leaves are thin and green. The petioles are 1 cm long and winged by the decurrent leaf blade. The flower spikes are arranged in a panicle that barely exceeds the leaves in length. The panicle bears about three branches, each with one or two curved basal spikes 2 to 4 cm long and several additional spikes at the tip. Individual spikes are 30 mm long and 1 mm thick, borne on nearly nonexistent peduncles. The floral bracts are rounded and peltate.
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.
It is endemic in Peru. It grows on a epiphyte environment and is a herb. It grows on wet tropical biomes.
This species has been assessed as threatened in a preliminary report.