42. 



This family contains some of the most poisonous plants in the 

 vegetable kingdom, like the cowbane or water hemlock and poison 

 hemlock. 



PARSNIP (Pastinaca sativa L.) 



A biennial with grooved stems; pinnately compound leaves, 

 with ovate to oblong cut toothed leaflets. Fruit oval to flattened 

 with broad wings. This tall stout glabrous or somewhat pubes- 

 cent biennial is as escape from cultivation. It has a straight tap 

 root in place of multiple thick fleshy roots as the poisonous hem- 

 lock or cowbane frequently called parsnip in this state. 



Horse Nettle (Solanum carolinense) , a perennial weed troublesome in 

 southern Iowa. Potato-like flowers and prickly stem (Division of Bot., 

 U. Dept. Agr.) 



Buckhorn (Plantago lanceolata). With a timothy-like head and elongated 

 leaves. Common in clover meadows. (Charlotte M. King.) 



CARRROT (Dau-cuK Carota L.) 

 A biennial or annual with bristly stems and pinuately decom- 



