ii KEY TO WEEDS 



(a) Leaf margin coarsely serrate or toothed 



(b) Leaf margin finely serrate 

 x. Upright plants, 2-6 feet tall 

 y. Plants lower, flowers in he 



(x) Flowers white or whitish 

 in. Plants creeping 



ii. Plants ascending or erect 

 (y) Flowers deep pink 



ves with more than 3 leaflets 



(1) Leaves palmate 



(a) Leaves silvery underneath, plants creeping 



(b) Leaves green both sides, plants tall 



(2) Leaves pinnate 



(a) Leaves with 5 (rarely 3) leaflets, flowers purple, in spikes 



(b) Leaves with numerous leaflets, flowers yellow, not in spikes 



Potent ilia tnonspeliensis: 



cinq foil 



Meliloius alba: sweet clover 



Tr i folium ripens: while 

 clover 



Tri folium hybrid um: alsike 



Trifolium pratense: red 

 clover 



Potentilla argentea: silvery 

 cinqfoil 



Cannabis sativa: hemp 



Petalostemon purpiireus: 



prairie clover 



Cassia chamaecrista: part- 

 ridge pea 



