Family, Primrose. Color, deep pink, rarely white. Calyx and corolla, 5-cleft, the divisions of the corolla being long and narrow. Stamens, generally 5, their anthers coming together and forming a cone. Leaves, in a cluster at the root, oblong or broader at apex than base. Flowers, in an umbel at the top of a naked scape, nodding on slender pedicels, surrounded by an involucre of small bracts. May and June.

Name means the "twelve gods," under whose care primroses were thought to be. This is a showy plant, found in deep, cool, moist woods, and in prairies from Pennsylvania westward and southward.