Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Self-pollination is the transfer of pollen from the anther to the stigma of the same flower or another flower on the same plant. It results in offspring genetically similar to the parent plant.
5 Must Know Facts For Your Next Test
Self-pollination can occur within a single flower or between flowers on the same plant.
It often leads to less genetic diversity compared to cross-pollination.
Plants that primarily self-pollinate may have adaptations such as cleistogamy, where flowers never open.
Self-pollination ensures reproduction in environments where pollinators are scarce.
Common examples of self-pollinating plants include peas, tomatoes, and some types of orchids.
Review Questions
Related terms
Cross-Pollination: The transfer of pollen from the anther of one flower to the stigma of another flower on a different plant, promoting genetic diversity.
Cleistogamy: A form of self-pollination occurring in certain plants where flowers do not open at all.
Anther: The part of a stamen that contains pollen, crucial for both self and cross-pollination.