The occurrence of two distinct forms of the same plant structure, such as leaves, flowers, or fruits, within a single species or individual plant. This can be related to sex, age, season, or environmental conditions.
From Greek 'di-' meaning 'two' and 'morphe' meaning 'form' or 'shape.' The biological term was established in the mid-19th century as scientists began recognizing and categorizing the various ways organisms could express multiple forms.
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