What does epigyny mean?
Epigyny is a botanical term for the arrangement of a flower in which the ovary lies above the points where the sepals, petals, and stamens attach. Such a flower is described as epigynous, and the ovary is commonly called superior. The condition contrasts with hypogyny, in which the ovary is below the other floral parts. Epigyny is important in describing and classifying flowering plants because their reproductive structures can differ substantially in position and form. In specialized botanical writing, the term may be used to distinguish plant families, genera, or individual species, but it is too technical for most everyday contexts. The word comes from Greek elements meaning “upon” and “female,” reflecting the elevated position of the female reproductive structure. Although uncommon outside specialist writing, epigyny is a precise and useful term for discussing floral anatomy.
nounThe botanical condition in which a flower's ovary is situated above the points of attachment of the sepals, petals, and stamens. This arrangement is also known as a superior ovary.
- The condition of a flower having its ovary above the points of attachment of the sepals, petals, and stamens.
"The botanist noted the epigyny of the tulip, whose ovary sits above the other floral parts."
"The epigyny of the tulip is characteristic of a flower with a superior ovary."
"The description separates epigyny from hypogyny, in which the ovary lies below the other floral parts."
The plural is uncommon and is used mainly when referring to the condition in multiple plants or taxa.
"The survey compares epigynies in several flowering-plant families."
In epigyny, the flower's female reproductive organ takes the high ground above the petals and stamens.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does epigyny come from?
English epigyny combines Greek epi, meaning “upon,” with gynē, meaning “woman” or “female,” referring here to the flower's female reproductive structures. The corresponding adjective epigynous describes a flower with a superior ovary, while gynoecium and gynecology preserve the same Greek root in related botanical and medical terms. The principal contrast is with hypogyny, where the ovary lies below the other floral parts.
Related word forms
How epigyny is actually used
This is a technical botanical term used chiefly in plant morphology and systematics, and it is uncommon in general prose. British and American botanical usage agree on the basic distinction.
Easily confused with epigyny
Epigony refers to a follower or successor, whereas epigyny is the botanical arrangement in which the ovary lies above the other floral parts.