Definitions for "Cleistogamous"
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.
Term used to describe a flower that self-pollinates, often without even opening the flower fully; relatively rare in orchids.
applied to a flower in which fertilization occurs without the flower opening.
Keywords:  exhibiting, relating
exhibiting or relating to cleistogamy