Forage and Grain Crops
Agronomy 105's Weed ID
White clover
White clover is a perennial that is often found in lawns and used for permanent pasture, though it is considered a weed in lawns.  The name White clover is derived from its white inflorescence or flower which is borne on a single stalk or stem, which is different from red clover. 
The leaves and stems of white clover are hairless and this characteristic can be used to distinguish it from Red clover.  Also notice the distinguishingwatermarks on the leaves.  White clover tends to grow very low to the ground and spreads by horizontal stems that creep along just above the soil surface.  These horizontal stems are called stolons.  White clover has a very shallow root system and is practically useless as a hay crop because of its low growth habit.  It is however used frequently in permanent pastures. 
The seeds of white clover are smaller than seeds from red clover and are yellow to brown and basically heart shaped.