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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