The inflorescences of American Bittersweet are ornamentally insignificant for both male and female flowers, which occur on separate plants. (Rarely, plants of the species are polygamo-dioecious, meaning that a very few "perfect" flowers [having both male and female structures] occur on either the male or female plants, with very limited fruit production on male plants, and the same result on female plants if a male pollinator is not nearby.)