What does perigynous mean?
Perigynous is a botanical adjective describing a flower in which the gynoecium, the collective female reproductive structure, is surrounded by the other floral parts. The stamens are inserted around it, and the ovary is therefore described as apparently superior because it is not embedded in the receptacle or surrounded below by the other organs. Perigynous flowers commonly have a cup-like hypanthium formed by fused or partly fused sepals, petals, and stamens, with the gynoecium seated within it. The term is especially useful in plant identification and taxonomy, where small differences in the positions of reproductive organs help distinguish species and families. It also has a specific technical opposite, epigynous, which describes flowers whose other floral parts arise above or around the ovary, making the ovary apparently inferior.
adjectiveOf a flower: having the gynoecium surrounded by the other floral parts, with the stamens inserted around it and the ovary apparently superior. In this arrangement, the gynoecium may be seated in a cup-like hypanthium formed by the sepals, petals, and stamens.
- Botanically, having the gynoecium surrounded by the other floral organs, with the stamens inserted around it and the ovary apparently superior.
"The botanist noted that the species has a perigynous flower, with stamens arranged around the central gynoecium."
"The wildflower was identified as perigynous because its stamens arose around the cup-shaped base of the gynoecium."
"Botanical descriptions distinguish the perigynous flowers of this genus from the epigynous flowers found in other members of the family."
Perigynous literally means “around the female parts”: its name captures the characteristic ring of stamens surrounding a flower’s central gynoecium.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does perigynous come from?
Perigynous was formed within botanical English from the Greek-derived prefix peri-, meaning “around,” and gynē, meaning “woman” or “female.” In the compound, the term refers to the female reproductive organs of a flower. It belongs to the same etymological family as gynoecium, gynecology, and gynecologist.
Related word forms
How perigynous is actually used
This is specialized botanical terminology rather than general vocabulary. It describes a particular arrangement of floral organs and is often used in identification keys and taxonomic descriptions.
Easily confused with perigynous
In a perigynous flower, the gynoecium is surrounded by the other floral parts, whereas in an epigynous flower, the other parts are attached above or around the ovary, making the ovary apparently inferior.