Birdsfoot trefoil (Lotus corniculatus) is a conspicuous plant in some lawns in June and July. Grown for pasture and hay, birdsfoot trefoil has escaped to roadsides and waste areas. It is also an occasional weed in lawns as it adapts well to mowing and other lawn practices.
Birsdfoot trefoil flowers. Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln.
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