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Of or relating to a flower that does not open and is self-pollinated in the bud.

[Greek kleistos, closed (from kleiein, to close) + -gamous.]

cleis·tog′a·my (-mē) n.


(Botany) self-pollination and fertilization of an unopened flower, as in the flowers of the violet produced in summer. Compare chasmogamy
cleisˈtogamous, cleistogamic adj


the state of bearing small flowers as well as fully developed ones, as in the pansy, in which the small ones do not open but are pollinated by their own anthers. — cleistogamous, adj.
See also: Flowers
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cleistogamy - the production of small nonopening self-pollinating flowers
self-pollination - fertilization by transfer of pollen from the anthers to the stigma of the same flower
References in periodicals archive ?
Open-pollinated flowers produced significantly more seeds per fruit than the manual pollination treatments and automatic self-pollination treatment (Fig 3B).
Many self-compatible species have special adaptations to prevent the automatic self-pollination, such as species herkogamous, protandrous and protogynous.

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