Is spadix unisexual

Yes, a spadix is typically unisexual, meaning it can bear either male or female flowers, but not both. In many plants, such as those in the family Araceae (like calla lilies and jack-in-the-pulpit), the spadix is surrounded by a bract called a spathe. This arrangement often facilitates pollination by attracting specific pollinators and promoting cross-pollination between separate plants.