Family, Evening Primrose. Color, white at first, turning pink. Calyx-tube, much prolonged beyond the ovary, 4-lobed. Corolla of 4 petals, clawed. Stamens, 8, drooping, their long filaments with a scale at the base of each. Stigma, 4-lobed, surrounded by a curious, raised border, capping a long style which droops also with the stamens. Flowers, small, in slender spikes on the ends of the upper branches. Leaves, alternate, sessile, oblong to lance-shaped, slightly toothed, 2 to 4 inches long. Fruit, rather large, softly hairy, 4-ribbed, acute at each end. July to September.
Dry soil, New England to Minnesota, southward to Georgia and Arkansas.