X(). 14.] FLOWERING PLANTS AND FERNS. 249 



Common. Meadows, fields and roadsides. May — June. 

 Naturalized from Europe. 



Extensively cultivated for fodder and for fertilizer. The 

 blossoms are used medicinally. 



Trifolium repens L. (creeping). 

 White or Honeysuckle Clover. 



Common. Fields, meadows, roadsides and lawns. May — 

 June. Probably, at least for the most part, introduced from 

 Europe. 



Valuable for pasturage, for lawns and as a honey plant. 

 Some authorities regard this species as the true Irish Sham- 

 rock. 



Trifolium hybridum L. (mongrel). 

 Alsike or Swedish Clover. 



Frequent. Cultivated fields, roadsides and waste ground, 

 usually in moist places. June — Aug. Naturalized from 

 Europe. 



Valuable for hay and as a honey plant, thriving best on 

 heavy soils. 



Trifolium agrarium L. (of fields). 



Trifolium aureum at least of American authors. 

 Yellow or Hop Clover. 



Common. Fields and roadsides. June — Aug. Natural- 

 ized from Europe. Of little value as a forage plant. 



Trifolium procumbens L. (trailing). 

 Low Hop Clover. 



Dry fields. Occasional to frequent near the coast ; rare 

 elsewhere. June — July. Naturalized from Europe. 



MELILOTUS Hill. Sweet Clover. 



Melilotus officinalis (L.) Lam. (of the shops). 

 Yellow Melilot or Sweet Clover. 



Occasional or local. Waste places. June — Aug. Natural- 

 ized from Europe. 



The leaves and flowering tops are medicinal. 



Melilotus alba Desr. (white). 



White Melilot or Sweet Clover. Bokhara Clover. 



