Definition of 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.
- Its oddity of structure, its lovely color and enticing fringe, lead one to suspect it of extraordinary desire to woo some insect that will carry its pollen from blossom to blossom and so enable the plant to produce cross- fertilized seed to counteract the evil tendencies resulting from the more prolific self- fertilized cleistogamous flowers buried in the ground below. - "Wild Flowers Worth Knowing", Neltje Blanchan et al.
- This species produces no cleistogamous or blind flowers. - "Wild Flowers Worth Knowing", Neltje Blanchan et al.
- The beech- drop bears cleistogamous or blind flowers in addition to the few showy ones needed to attract insects. - "Wild Flowers Worth Knowing", Neltje Blanchan et al.