EXERCISE 5 (Continued) 



3. Further Examples. Place the names of the common plants in your 

 locality in the table below as they fall in one or more of the six groups. For 

 example, a plant may have both rhizomes and fibrous roots. 



Application. 1. Compare the root systems of timothy and clover. Give 

 one reason why they grow well together. 



2. Why should an alfalfa field have a supply of lime in the subsoil? 



3. Can you control quack grass and orange hawkweed by preventing 

 seed formation? 



4. What does a grass sod consist of? 



5. Why does a wild carrot not produce seed the first year? 



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