They are pedicellate, ebracteate, actinomorphic, cyclic, hermaphrodite, and epigynous. Plant families with epigynous flowers include orchids, asters, and evening primroses. Flowers with inferior ovaries are termed epigynous. Gynoecium tricarpellate, ovary epigynous (inferior), two trimerous androecial whorls with stamens 6, 5 or 1. Epigynous flowers are often referred to as having an "inferior ovary". The epigynous female flowers produce a single seed each but are congregated in small clusters.