Pilea petiolaris is
a perennial herb, 40-80cm in height, growing on damp forest floors
in mountainous regions, the stems are weak, and nodes are expanding.
Leaves, with long petioles, are in the shape of a long oblong with
shortly pointed tips, three prominent veins, and the leaf margins
monoecious, emerge male inflorescences and female ones from separate
leaf axils, respectively; flowers are all light green; male flowers
are with four tepals and four stamens, and female ones with three
tepals. Bloom time: July-October.