WEEDS OF ARABLE LAND 



97 



are still seedlings. In field cultivation both the horse 

 and hand hoe must be kept busy in root crops. 



Photo, 1908. H. C. Long. 



FIG. 26. Groundsel (Senecio vulgaris L.), flowering plant and seedlings, 



Nipplewort (Lapsana communis L.) is a common 

 annual weed of cultivated land, hedgerows, and waste 



G 



