Unisexual flowers contain ___.
either stamen or carpel
A flower that possesses either stamens or carpels but not both. A plant may be unisexual (dioecious), possessing only male flowers or female flower or it may be monoecious with male and female reproductive organs borne in the same flower or in different unisexual flowers but on the same plant. For example, papaya and watermelon unisexual flower.