I had assumed you ;-) would refer to the avocado, of which some plants are
female in the morning and male in the afternoon, while others are just the
reverse, with both groups needing to be present for fruit to set?
PvR


MMMavocado schreef
Plants in many families can make fruit parthenocarpically (seedless fruit
is the result, so for a fruit grower that's still ok, but not reproduction).
But if not parthenocarpic, even fruits won't form.
Examples of dioecious plants that come to mind a

date palms (Phoenix dactylifera)
persimmon (Diospyros virginiana, D. kaki)
red maple (Acer rubrum)
Some hollies (not all) (Ilex spp.)
at least some of the ashes (Fraxinus spp)
papaya (Carica papaya), which has staminate, pistillate, and
perfect-flowered individuals
Some grapes, including the southern muscadine (Vitis rotundifolia), which,
like papaya, has all three types.
fig (Ficus carica), although females are often parthenocarpic, and of
course, the syconium is not really "fruit" tissue anyway, in the sense of
being an ovary.
Brazilian pepper (Schinus terebinthefolia)

In most of these examples, except for some horticultural cultivars
selected for their parthenocarpy, an isolated pistillate ("female") plant
will not bear fruit.