EXPERIMENT STATION BULLETINS. 



353 



I'ig. 122. 



Rabbit-foot Clover. Tiifolium arvensc L. A slender, erect, .'^ilky, hairy annual, 

 15-25 cm. high; leaflets three, sessile, narrowed at the bas6; calyx sllky;"corolla whitish. 

 Not common nor troublesome. Sandy, barren soil. Introduced from Europe. 



If eaten by horses, the flower heads collect intc balls, closing the intestines. 



45 



