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Key to Fabaceae, Key C: woody legumes with evenly 1-pinnately compound leaves with 2 or more leaflets
[subfamilies Faboideae and Caesalpinioideae]

Fabaceae

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1 Flowers with 5 petals, 2 fused to form the keel (papilionaceous); corolla rose, yellow, orange, red, pink, or white; [subfamily Faboideae].
  2 Lianas climbing by twining; stamens 9, monadelphous
  2 Shrubs; stamens 10, diadelphous (9 and 1).
    3 Leaflet pairs 10-25; [widespread]
    3 Leaflet pairs 4-6.
      4 Leaflets 10-25 mm long; corolla 15-20 mm long, yellow; [non-native cultivated and sparingly established]
      4 Leaflets 3-11 mm long; corolla 8-11 mm long, pink or white; [native, s. TX]
1 Flowers with 5 or 3 petals, all distinct (caesalpinaceous); corolla yellow, orange, red, or pink; [subfamily Detarioideae or Caesalpinioid clade].
        5 Large tree; sepals 4; petals 3; functional stamens 3; [subfamily Detarioideae]
        5 Shrub or small tree (< 5 m tall); sepals 5, petals 5, functional stamens 6-10; [Caesalpinoid clade].
          6 Trees; filaments of the 3 lower stamens curved; petiolar gland absent; [introduced in s. FL]
          6 Shrubs or trees; filaments of all stamens straight; petiolar and/or rachis gland(s) present or absent; [collectively more widespread].
             7 Leaflets 0.6-1.0 cm long, coriaceous, the venation raised-reticulate below; functional stamens 10; [s. TX]
             7 Leaflets 1.5-10.5 cm long, herbaceous; functional stamens 6-7 (10 in S. surattensis); [collectively more widespread, but especially FL and s. TX]