104 



PEA FAMILY (PULSE FAMILY) 



cultivated peas. The stamens in nearly all our species 

 are ten in number, and the filaments are generally more 

 or less united. The seedpods show variety in form, and 

 are an aid in determining the genus. 



KEY TO THE PEA FAMILY 



Red Flowers 



Leaflets 3 Erythrina 



Leaflets 7-15, seedpod short, turgid Indigofera 



Leaflets 16-28, seedpod 4-winged Sesbania 



Flowers white changing to red. Low plants Cracca 



Pink, Rose, or Rose Pukple Flowers 



Leaves 1-foliate Lupinus 



Leaflets 3, seedpod linear or linear-oblong Galactia 



Leaflets 3, seedpod curved Phaseolus 



Leaflets 3, seedpod thick, 4-6 in. long Canavalia 



Leaflets 3, seedpod of separable joints Desmodium 



Leaflets 3-7, seedpod tiny Petalostemuni 



Leaflets 3-21, seedpod flat, linear Cracca 



Leaflets 7-15, seedpod turgid Indigofera 



Blue, Violet, or Purple Flowers 



Leaves 1-foliate Lupinus 



Leaflets 3, flowers large Clitoria 



Leaflets 3, flowers small Psoralea 



Leaflets 2, 4, or 6 Vicia 



Leaflets 5 or 7 Apios 



Leaflets 11-15. Erect herbaceous plant Parosela 



Leaflets 11-23. Shrub Amorpha 



Leaflets 15-25. Prostrate plant Tium 



Leaflets 20-52. Tall annual Glottidium 



White Flowers 



erect plants 



Leaflets 3, oval or roundish Lespedeza 



Leaflets 3-15, very narrow Kuhnistera 



Leaflets 11-15, oval or oblong Parosela 



trailing or climbing plants 



Calyx lobes nearly equal Cracca 



Calyx lobes unequal, 2 upper lobes united Galactia 



Yellow Flowers 

 seedpods of separable joints 



Leaflets 3 Stylosanthes 



Leaflets 4 Zornia 



Leaflets 5 or 7, fls. in terminal racemes. .. .Chapmania 

 Leaflets 5-many, fls. in axillary racemes. .Aeschynomene 



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