They are generally hermaphrodite, and have a short hypanthium, usually cup shaped.
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If the hypanthium is absent, the flower is hypogynous, and the stamens, petals, and sepals are all attached to the receptacle below the gynoecium.
From the en.wikipedia.org
The flowers have a short hypanthium and a single carpel with a short gynophore, and after fertilization produce fruits that are legumes.
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In an epigynous flower, the stamens, petals, and sepals are attached to the hypanthium at the top of the ovary or, occasionally, the hypanthium may extend beyond the top of the ovary.
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The cuplike or ringlike or tubular structure of a flower which bears the sepals and stamens and calyx (as in Rosaceae)
A hypanthium is a floral structure consisting of the bases of the sepals, petals, and stamens fused together. Its presence is diagnostic of many families, including the Rosaceae, Grossulariaceae, and Fabaceae. ...
A tubular or cuplike receptacle on which the stamens, petals, and sepals are borne.
Structure generally in the shape of a tube, cup, or bowl, derived from the fused lower portions of the perianth and stamens, from which these parts seem to arise, and to which the ovary wall is fused in an inferior ovary (to which the ovary wall is partially fused in a half-inferior ovary; from ...
A cup-like structure in a flower resulting from the fusion of calyx lobes to form a tube or cup which is also fused to other floral parts so that the stamens and petals are attached at the apex.
An enlarged receptacle; in eucalypts specifically the broadened, invaginated structure at the top of the pedicel partly or wholly enclosing the ovary, i.e. the bottom part of the bud or flower [image]
A cup-shaped structure surrounding the ovary and formed by a fusion of the bases of the perianth segments (petals and sepals). Some references state that the hypanthium may also contain tissue from the receptacle. ...
An expantion of the recepticle (bottom of flower) forming a saucer-shaped, cup-shaped or tubular organ, often simulating a calyx (sepal) tube and bearing the sepals, petals and often the stamens (male parts) at of near its margin.