Family, Pink. Color, rose. Calyx, 5-toothed, veined, becoming swollen with the expanding pod. Petals, 5, stalked or clawed, deeply notched, making them inversely heart-shaped, each with a scale-like growth at the base of the blade. Stamens, 10. Styles, 3. Flowers, in panicles, small, opening only for a little time in sunshine. Stem, slender, with swollen, sticky, somewhat glutinous joints, 10 to 30 inches high. Leaves, opposite, sessile above, long, narrow; those near the root with short petioles, sometimes hairy. June to September.

Dry soil in open woods or waste places, New England to Florida and Mexico. Found over 3,000 feet high in Virginia.