KEY TO CLOVER-LIKE PLANTS. 65 



5. Spreading stems growing in dry situations 



Lotus Corniculatus 



Almost upright stems growing in damp and shady 

 places L. Major 



6. Stipules transparent and membranous, veined with 



green, or at most green over less than half their area 7 

 Stipules membranous only at tip ; more than half 

 their area leafy green 8 



7. Stalks of the 3 leaflets almost or quite equal in 



length ; leaflets large, growing in damp places ; 

 stems ascending ; flowers pink Alsike 



Stalk of terminal leaflet three times as long as stalks 

 of basal leaflets ; leaflets small ; stems ascending ; 

 flowers small and yellow Little Trefoil 



8. With dark spot in middle of each leaflet 



Spotted Burr Clover 

 With no dark spot in middle of each leaflet 9 



9. Leaflets large and long, oval in shape ; toothed on 



edge in upper half, midrib carried on one-tenth 

 inch to one-quarter inch past bases of lower 

 leaflets Lucerne 



Leaflets heart-shaped or round. Projections of 

 midrib past basal leaflets not nearly so marked 10 



10. Pods dense black as big as a wheat grain 



Black Medick 



Pods yellowish as big as a hazel nut and spirally 

 twisted Burr Clover 



11. Leaflets 5, or 3 with the stipules shaped exactly 



like the leaflets 



Lotus angustissimus and Lotus hispidus 

 Leaflet 3, with stipules quite unlike leaflets 12 



12. Small spike protruding from niche at end of 



leaflets Black Medick 



No spike protruding from end of leaflet 13 



