An erect perennial whose branches are covered with down, mingled with a few villi. Leaves stalked, cordate-ovate, acute, crenate-dentate, 7–12-nerved, downy on both surfaces, stalks scarcely so long as the blades. Stipules leafy, subulate. Peduncles axillary, solitary, 1-flowered, longer than the leaves, jointed near the top. Calyx-segments deltoid, acuminate, as long or longer than the ripe fruit. Petals reddish-yellow (Vogel). Fruit subglobose, depressed in the centre, an inch or more in diameter, of 20 or more carpels, which ultimately fall away from the axis, and are reniform, 2-mucronate, downy, and 3-seeded.