Angiosperms have both pistillate, stamenate, and combined flowers.

Gymnosperms have cones or not.

I was a champion marijuana grower; one of the problems is that since we take out the stamenate ("male") plants, sometimes the pistillates grow a few stamenates and the buds end up with seeds if we aren't vigilant. Plants have sexes, but it's not the same as higher animals.

Some amphibians can change sex, and there are hermaphroditic snakes.

Gender advocates insist that developmental defects prove that "gender is a social construct."