Peperomia erythrostachya 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 Posuso, Peru at an altitude of 600 meters.
Peperomia erythrostachya is a rather large, glabrous, pendulous, epiphytic herb. The moderately slender stem is 2âÂÂ3 mm thick and, when dry, is a reddish-brown with a somewhat shiny surface. The alternate leaves are ovate to elongated-ovate, acute to somewhat acuminate, with a rounded to subcordate base. They are quite large, 6âÂÂ9 cm long and about 4 cm wide, and when dry are opaque, leathery, with multiple pinnate nerves. The petiole is 2.5âÂÂ6 cm long or more. The axillary spikes are long and slender, reaching 200 mm in length and 2 mm in thickness. They are dark red and densely flowered, borne on a 2 cm peduncle that is bracteate in the middle. The round-peltate bracts are relatively large.
It was described in 1936 by William Trelease in ', from specimens collected by James Francis Macbride. It got its epithet from the Greek + , referring to the distinctive dark red flower spikes.
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.