A tall perennial covered with down, interspersed among which are a few spreading villi. Leafstalks as long as the leaves, the latter orbicular-cordate, acuminate, coarsely dentate, 7–12-nerved. Pedicels solitary, axillary, jointed, shorter than the leafstalks. Calyx cup-shaped, 5-fid, its 5 segments oval, cuspidate, shorter than the yellow corolla, but about equalling the ripe fruit, which latter is subglobose and consists of 20 carpels ultimately seceding from the axis. Carpels membranous, oblong, somewhat rounded at the apex, shortly beaked or muticous. Seeds reniform, 3 in each carpel.