-58 



LEGl >I1>OSAE, the Pulse Family 



Trees, shrubs, or herbs, with alternate compound (except 3 species 

 with simple) leaves and stipules; flowers usually irregular (except in 

 a few species), with a large upper petal and 4 smaller ones, the 2 

 lower enclosing the stamens and pistil; stamens almost always 10, 

 and generally united by their filaments; pistil 1, simple, ripening into 

 a pod. 



la. Shrubs or trees 2. 



Ib. Herbs, twining, but without tendrils 9. 



Ic. Herbs; the leaves, or some of them, tipped with tendrils 12. 



Id. Herbs, not climbing or twining; tendrils none 21. 



2a. Leaves simple 3. 

 2b. Leaves compound 4. 



3a. Leaves broadly cordate (tall shrub or small tree; flowers pink. 



early spring) Redbud, Cercis eanadensis. 



Sb. Leaves lanceolate or elliptical (36 dm. high; flowers yellow, 



summer) Dyer's Green weed, Genista tinctoria. 



4a. Twigs or branches thorny 5. 

 4b. Thorns none 7. 



5a. Thorns branched, scattered on the stem (tall tree; flowers green- 

 ish, early summer) Honey Locust, Gleditsia triacantlios. 



5b. Thorns unbranched, a pair of them at the base of each leaf (late 

 spring) 6. 



6a. Branches glabrous or nearly so (tree; flowers white) 



Black Locust, Robinia pseudo-acacia. 



6b. Branches glandular-pubescent (tall shrub; flowers pink- 

 ish) Clammy Locust, Robinia yiscosa. 

 6c. Branches bristly (shrub, 13 m. high; flowers pink) 



Bristly Locust, Robinia hispida. 



7a. Trees; leaves 2 3-pinnate (flowers greenish-white, spring) 



Kentucky Coffee-tree, Gymnocladus dioica. 



7b. Low shrubs; leaves once-pinnate (3 6 dm. high; summer) 8. 



8a. Flowers bright-blue, each with a single petal 



Lead Plant, Amorpha canescens. 



8b. Flowers yellowish and pink-purple, petals 5 26a. 



9a. Leaflets 5 7; flowers in racemes (purplish, late summer) 



Wild Bean, Apios tuberosa. 

 9b. Leaflets 3 (flowers greenish, purple, or white, late summer) 10. 



lOa. Flowers in small capitate clusters; lower 2 petals strongly 

 incurved Wild Bean, Strophostyles helvola. 



lOb. Flowers in racemes (Hog Peanut) 11. 



