MICHIGAN WEEDS. 



3$5 



Fig. 1081(99). 



Penny Cress. Stink Weed. Thlaspi arvense L. A smooth, erect annual, 15-40 

 cm. high; leaves sessile, the upper sagittate, flowers white; pods thin, flat, nearly circu- 

 lar, 8-16 mm. in diameter, deeply notched at the top. Waste places, ready for a very 

 quick growth. Introduced froni Europe. In the northwest a persistent enemy of the 

 wheat grower; the seeds spoiling flour; also flavoring the mutton of sheep that eat the 

 plant and when eaten by cows, giving a bad taste to milk. 



