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. 
