Weeds, what you SHOULD know! Shepherd's Purse!
Shepherd's Purse known by it's binomial name of Capsella bursa-pastoris is typically found in growing zones 4-7. it is in the Brassicaceae family (aka mustard) Originally from Asia and used medicinally for centuries, this herb contains the isothiocyanate compound sulforaphane. This organic compound is found in the tangy herbs such as onions, mustard, horseradish, and of course shepherd's purse. It thrives in moist, fertile soils or dry, sandy areas in lawns, barnyards, roadsides, and waste areas. (Hayes)