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Which plants have separate staminate and pistillate flowers on the same plant?
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plant reproductive system
A large bumblebee (Bombus species) pollinating a teasel flower head (Dipsacus species).
Plants that possess both staminate (male) and pistillate (female) flowers on the same individual are classified as monoecious plants.1
While many plants have bisexual flowers containing both male and female parts, monoecious species with unisexual flowers separate these reproductive structures into distinct flowers on the same plant. Common examples of plants that follow this strategy include:1
- Squashes1
- Corn1
- Birches1
- Most conifers, which produce separate male and female cones on the same tree.1
This arrangement ensures that the plant can produce both pollen and seeds, though it relies on mechanisms like wind or pollinators to transfer pollen from the staminate flowers to the pistillate ones.1