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Key to Fabaceae

Fabaceae

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1 Trees, shrubs, or woody vines; [subfamilies Caesalpinioideae, Mimosoideae, and Faboideae]
  2 Leaves 1-3-foliolate, or leaves reduced to flattened phyllodia or phyllodial spines.
  2 Leaves 4-many-foliolate.
    3 Leaves bipinnately compound
    3 Leaves pinnately compound.
      4 Leaves evenly 1-pinnate, with 1 or more lateral pairs of leaflets and 0 terminal leaflet
      4 Leaves oddly 1-pinnate, with a terminal leaflet
1 Herbs (including herbaceous vines).
        5 Leaves 4-many-foliolate.
          6 Leaves palmately compound, with 4 or more leaflets; [subfamily Faboideae]
          6 Leaves pinnately or bipinnately compound.
             7 Leaves bipinnately compound
             7 Leaves pinnately compound
               8 Leaves evenly 1-pinnate, with 1 or more lateral pairs of leaflets and 0 terminal leaflet
               8 Leaves oddly 1-pinnate, with a terminal leaflet
        5 Leaves 0-3-foliolate ; [subfamily Faboideae].
                 9 Leaves 2-foliolate
                 9 Leaves 0, 1, or 3-foliolate.
                   10 Leaves trifoliolate (plants with some upper stem or lower stem leaves unifoliolate but with other trifoliolate leaves should be keyed here).
                     11 Leaves palmately 3-foliolate (the petiolules of the 3 leaflets usually of similar length (if the apparent petiolule of the terminal leaflet is slightly longer, it does not have a joint between a rachis and the petiolule of the terminal leaflet)
                     11 Leaves pinnately 3-foliolate