898 



Rural School Leaflet. 



Fig. 32. — Beggar-ticks. The teeth on the 

 prongs of the seeds point toward the base 

 of the seed 



Fig. 33. — Burdock. Notice the hook at the 

 end of each seed 



the next spring in order to gro^v 

 seeds. One of the most common 

 weeds of this class is wild carrot. 



Certain other weeds live sev- 

 eral years. Dandelions, golden 

 rods, and burdocks are of this 

 class. The only way to get rid 

 of them is to dig them up. Weeds 

 of this class increase in size 

 from year to year. They die 

 down to the ground each fall 

 but the roots remain and begin 

 growing early the next spring. 



The seeds of chickweed and 

 some other weeds come up in 

 the fall, just as winter wheat 

 does. During the warm autumn 

 days and often in the mild days 

 of winter they make consider- 

 able growth. They are among 

 the earliest weeds of spring. 

 These weeds are called winter 

 annuals. 



It is very interesting to ob- 

 serve how weeds get from one 

 place to another. Man and ani- 

 mals are often the carriers of 

 weed seeds. Sometimes they 

 get mixed wdth seeds of grain 

 and are planted with useful 

 seeds, such as wheat or oats. 

 Then some kinds of seeds cling 

 to clothing and are carried 

 long distances. Most of us have 

 stopped to pick off weed seeds 

 after passing through the woods. 

 Seeds of burdock and sandburs 

 become fastened to the fur of 

 animals and are widely scat- 

 tered in this way. How many 

 kinds of weed seeds can you find 



