PLATE 53. TWENTY COMMON WEEDS. 



1. Cocklebur (Xanthium strumarium). 2. False Mallow (Malvastrum tricuspidatum). 

 3-4. Common Sida (Sida spinosa). 5. Wild Euphorbia (Euphorbia geniculata). 6. Yel- 



(Descniilion of Plate Continued on tin- OpiioMe Pa<ie.) 



