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.
Family, Pulse. Color, greenish white varying to purplish. Flowers, 3 to 5 in a head at the end of a peduncle which lengthens as the season advances. Leaves, pin-nately 3-divided, on petioles shorter than the peduncles. Leaf-lets, broadly ovate, pointed at apex, rounded at base, smooth, thickish, with small, narrow stipules. July to October.
Stems hairy, somewhat branched, reclining, 2 to 8 feet long, but seldom climbing high. Following the coast from Massachusetts to Florida and westward to Texas, in sandy shores and along river-banks.
 
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