Floral diagram

A floral diagram is a graphic representation of the structure of a flower. It shows the number of floral organs, their arrangement and fusion. Different parts of the flower are represented by their respective symbols. Floral diagrams are useful for flower identification or can help in understanding angiosperm evolution. They were introduced in the late 19th century and are generally attributed to A. W. Eichler.^[1]

They are typically used with the floral formula of that flower to study its morphology.

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[1]



Floral diagram of Anagallis arvensis.^[1]^: 307 The dot represents the main axis, green structure below is the subtending bract. Calyx (green arcs) consists of five free sepals; corolla (red arcs) consists of five fused petals. Antepetalous stamens are joined to petals by hairy filaments. Ovary is superior, placentation is free central and the ovules are atropous.