The
type specimen were collected in the primeval forest of
Mount Gedeh, on decaying wood and tree roots.
Peperomia gedehana has a
glabrous stem that roots below, nearly 2 mm thick, leathery when dry, branched above with branchlets nearly 1 mm thick. The
leaves are alternate with short glabrous
petioles up to 3 mm long; the blade is ovate-lanceolate, acute at the base, subacute at the apex, somewhat rigid when dry, up to 2 cm long and 7 mm wide,
3-nerved. The
peduncles are glabrous, axillary, equaling the petioles. The
spikes nearly equal or slightly exceed the leaf blades, 1.5–2.8 cm long and 1 mm thick when bearing fruit. The
bract has a pelt nearly 0.35 mm in diameter. The
ovary is obovate, bearing a
stigma just below the apex; the stigma is glabrous. The
berry is ovate, sprinkled with whitish glands, slightly over 0.5 mm long, brownish when dry. ==Taxonomy and naming==