CLASS XVII. ORDER IV. 289 



Trifolium repens. L. White Clover, or Honeysuckle. 

 Heads like umbels; legumes four seeded; stems 

 creeping. L. 



Common in pastures, flowering from May to September. Root 

 perennial. Stems spreading, leafy, smooth. Leaves on long 

 petioles ; leafets roundish, acute at their base, finely serrate, 

 commonly marked with a white, semicircular spot. Flowers 

 white, in a dense umbel, resembling a head ; corollas persistent, 

 enclosing the pod, which contains three or four seeds. — White 

 clover increases rapidly, and resists drought. Cattle are very 

 fond of it, and it forms one of the best materials for feed in 

 pastures. 



Trifolium procumbens. L. Yellow Clover. 



Spikes oval, imbricate; banner fiuTOwed. reflexed, 

 persistent ; stem procumbent, leafets obovate. 



Stem spreading. Leafets smooth, obovate, denticulate. Heads 

 of flowers solitary, axillary, pedunculated, roundish or oval. 

 Calyx hairy; corolla yellow, turning dull with age. Dry fields, 

 Waltham. — July. — Annual. 



Trifolium pratense. L. Red Clover. Honeysuckle. 



Spikes dense; stems ascending; corollas unequal ; 

 four of the calyx teeth equal ; stipules awned. Sm. 



Stem oblique, somewhat branching, hairy toward the top. 

 Leafets ovate, with usually a white spot on the upper side, some- 

 what hairy underneath. Stipules broad, membranous, ribbed, 

 ending in a point or awn. Flowers red, in large ovate spikes 

 resembling heads, somewhat sweet scented. Calyx of five seg- 

 ments, the lowest longest. Banner of the corolla longer than 

 the wings and keel. The excellence of red clover for hay is 

 well known. It is extensively cultivated here, alone, or in com- 

 bination with herds grass, (Phleum pratense.) In its wild state 

 it grows every where, and flowers from May to September.— Pe- 

 rennial. 



Trifolium medium. L. Zigzag Clover. 



Spike lax ; stem flexuous, branched; corolla mono- 

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