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Term Definition
Epigynous ovary Referring to a flower in which all or some of the floral parts (i.e., the sepals, petals, and stamens) arise from the summit of the ovary; e.g., species of Asteraceae and Rubiaceae. Epigynous, perigynous, and hypogynous flowers. Drawing by B. Angell.
Hypogynous ovary Referring to a flower in which 1) the sepals, petals, and stamens are free from one another and arise from beneath the ovary, e.g., the flowers of Ranunculaceae or 2) bristles or other structures as well as stamens arise from below the ovary, e.g., the bristles of some species of Cyperaceae and the modified bracts of species of Poaceae. Compare with epigynous and perigynous. Epigynous, perigynous, and hypogynous flowers. Drawing by B. Angell.
Inferior ovary An ovary in which the floral parts (calyx, corolla, and stamens) arise from the summit; e.g., in Rubiaceae and Asteraceae. Superior and inferior ovaries. Drawing by B. Angell.
Ovary The part of the gynoecium (=pistil) containing the ovules. Complete flower. Drawing by B. Angell.
Perigynous ovary Referring to a flower in which the sepals, petals, and stamens arise from the rim of a cuplike hypanthium surrounding the ovary. Epigynous, perigynous, and hypogynous flowers. Drawing by B. Angell.
Subsuperior ovary A type of inferior ovary in which the sepals, petals, and stamens do not arise clearly from the apex but instead appear to arise from lower down on the ovary. Epigynous, perigynous, and hypogynous flowers. Drawing by B. Angell.
Superior ovary An ovary of a hypogynous or perigynous flower in which the sepals, petals, and stamens arise from beneath or around the ovary (= hypogynous) or from the rim of a hypanthium (=perigynous). Superior and inferior ovaries. Drawing by B. Angell.