Female butternut squash flowers (Curcubita moschata). Cut away view of the reproductive parts of a pistillate (female) butternut squash flower (left). The cut away has revealed the stigmas (orange) and styles (white) at the centre of the petals (yellow). At the base of the flowers are embryonic fruit. Plants in the Curcubitaceae family are monecious, meaning they have unisexual (imperfect) flowers of both sexes on the same plant.