This section is from the book "Harper's Guide To Wild Flowers", by Caroline A. Creevey. Also available from Amazon: Harper's Guide To Wild Flowers.
Trifolium agrariam----Family, Pulse. Color, yellow, the corolla becoming dry and brown with age. Leaves, 3-foliate, spreading, of a roundish or oval form. Stipules, long and narrow, joined to the leaf-stalks for half their length. Summer.
Light, sandy soil, by roadsides and in fields from New-England to Virginia. A naturalized species.
 
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