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Directory of Fabaceae Resources

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Also called Leguminosae, the legume family. One of the largest families of flowering plants. The family is usually divided into three sub-families that are sometimes recognised as three separate families: Papilionaceae, Caesalpiniaceae and Mimosaceae. The three subfamilies are generally identifiable by their flowers: Fabaceae or Papilionoideae - flowers zygomorphic (with bilateral symmetry) and papilionaceous (have banner, wing, and keel petals). Banner positioned outside wings; keel petals fused. Includes most important legume crops, including beans and peas. Caesalpinioideae - flowers zygomorphic and may be papilionaceous. Banner positioned within wings; keel petals unfused. Includes Cercis (redbud). Mimosoideae - flowers actinomorphic (with radial symmetry), usually borne in dense clusters and having showy stamens. Includes Acacia, Albizia, and Mimosa. The taxonomy at dmoz.org treats these three as separate families and defines the Fabaceae narrowly - see the related links for the Caesalpiniaceae and Mimosaceae.

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