KEY TO WEEDS 



:n long, ill : 



. 



! lowers in numerous axill 

 I rs in axillary . In-'- • 



b. Leaves lobi d or cut 

 (1)1 osite 



Stems climbing, rough, almost prickly 

 (b) Stems not climbing, square or squarish 

 Sti ms prostrate, bracted, fruit m 



• 



• 



. 



ires alternate 

 S ;i ms climbing, fruit spiny 

 x. Fruits borne singly, four • 



y. Fruits in clusti rs, one seeded 



Stems erect or nearly so, fruit mostly smooth 

 x. Fruit small, flattened, l-seeded, in clu 



y. Fruit a several to man) 



Pod elongated or narrow 

 m. Pod 0-10 cm. long, flowei red 



n. Pod 1-2 cm. long, flowers yellow 



(m) Pod sessile 



(n) Pod stalked 



1 i ni. or Li 5s, shorter than th( 



onger than pedi< els, 

 ing 



■ 

 r. Pod 10-15 mm. long 

 s. Pod 2-5 cm. long 



Bi ak very short, po 



. 







■ j Pod rounded or triangular 

 m. Pod large, spiny 



n. l'o<l small, flat and smooth 

 (m) Pod rounded, 2 -• 





I d triangular, i 



2. Leaves com] 



a. Leaves with 3 leafl 



(1) Leaf-margin entire 



(a) r 



(b) Plants scentless, leafl) ts n< I 



(2) Leaf margin serrate or toothed 





