LESSONS IN GARDEN WORK 49 



ri-a) . This weed grows from one to three 

 feet high ; has peach-like leaves with dark 

 spots on them. The seed is very shiny 

 and black. It is a very troublesome weed 

 in the United States and parts of Europe. 

 Grows most abundantly in damp seasons 

 or in moist places. There are many 

 kinds of knot-grass. This one is closely 

 related to the Prince's-feather. Joints 

 of stems always swollen. Flowers white 

 or pink. The weed is used in medicine. 



Killed only by pulling up, as it will 

 sucker if broken off. Best time to kill 

 it in the garden is when it is very young. 



