)t 



H. 



Trifolium LEGUMINOSAE Trifolium 



Trifolium L. Clover. 



T. arvense L. Rabbit-foot Clover. 



Frequent in dry, sandy soil and moist dune hollows of the 

 Coastal Plain. Mid-June, July. Nat, from Europe. ,^ • '. i 



T. incarnatum L. Crimson Clover, 



Occasionally naturalized about fields, New Castle and Kent 

 Counties, Del. Introd. from Europe. 



T. pratense L. Red Clover. 



Escaped from cultivation to fields and roadsides. June, July. 

 Introd. from Europe. -. ' 



T. repens L. White Clover. 



Frequently escaping from cultivation, to fields and roadsides. 

 Fl. all summer. Introd. from Europe. 



T. hybridum L. Alsike Clover. 



Rather frequent on roadsides and in fields, Cecil, New Castle and 

 Sussex Counties. May to Sept. Introd. from Europe. 



T. carolinianum Mx. 



One collection: sandy soil, Milton (S), Commons, 17 Aug. 1899 

 (A). 



T. agrarium L. Hop Clover. Large Yellow Clover. 



Frequent in the Piedmont region; rare on the Coastal Plain: 

 Assateague Island (Ac), True, 28 June 1928 (P); pine woods. 

 Savage Neck (No), R. R. Tatnall, 3380, 1 June 1937 (T). Fl. all 

 summer. Nat. from Europe. 



T. procumbens L. Low Hop Clover. 



Frequent in the Piedmont of New Castle County; rare south- 

 ward to Talbot County: n. e. of Trappe (Ta), Earle, 2772, 5 July 

 1940 (P), and 3244, 17 May 1941 (A). Fl. all summer. Nat. from 

 Europe. 



T. dubium Sibth. (T. procumbens var. minus of Gray's Man., ed. 6.) 



Infrequent, in sandy soil chiefly south of the Fall Line. Fl. all 

 summer. Nat. from Europe. 



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