Word Study
cleistogamic
CIDE DICTIONARY
cleistogamic, a. [Gr. closed (fr. to shut) + ga`mos marriage.].
Having, beside the usual flowers, other minute, closed flowers, without petals or with minute petals; -- said of certain species of plants which possess flowers of two or more kinds, the closed ones being so constituted as to insure self-fertilization. Darwin. [1913 Webster]
OXFORD DICTIONARY
cleistogamic, adj. Bot. (of a flower) permanently closed and self-fertilizing.
Etymology
Gk kleistos closed + gamos marriage
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