The
type specimen were collected near
Namosi, Fiji.
Peperomia purpurinodis is a small, herbaceous epiphyte, growing up to 15 cm tall and branching from the base. Its
stems have swollen nodes that are a deep purple color, a distinctive feature noted in living plants. The stems and nodes are densely covered in very short (0.25 mm), stiff, erect hairs. The alternate
leaves are elliptic to elliptic-subobovate, measuring 4–7 cm long and 1.5–3 cm wide. The leaf tip is attenuate and acute (though lower leaves may be more rounded), and the base is acute to wedge-shaped. Both leaf surfaces are hirtellous, and the blade is notably dotted with prominent orange-red glandular dots. The margins are ciliolate, at least toward the tip. The leaves are palmately 7–9-nerved and dry to a rather firm, subtransparent texture with a narrowly revolute margin. The
petiole is about 5 mm long and hirtellous. The
spikes are 2–5 cm long, either solitary or arranged in small, paniculate clusters of 2 or 3 in the leaf axils. The
peduncle is 3–5 mm long and slightly hirtellous, and both the peduncle and the
rachis are dotted with glands. The
floral bracts are round-peltate, and the
drupes are about 0.75 mm long, turbinate to subglobose, with an apical
stigma. This species is set apart by its small stature, distinctly swollen purple nodes, and leaves that are palmately 7–9-nerved and covered in prominent orange-red glandular dots. While its dense, short
indument resembles that of
P. parhamii, it differs markedly in the size, shape, and higher nerve count of its leaves. ==Taxonomy and naming==