The column, or technically the gynostemium, is a reproductive structure that can be found in several plant families:
Aristolochiaceae,
Orchidaceae, and
Stylidiaceae. It is derived from the fusion of both male and female parts (
stamens and
pistil) into a single organ. This means that the style and stigma of the pistil, with the filaments and one or more anthers, are all united.
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