Hedge bedstraw is a weed that grows in much of North America, primarily the eastern and western United States and Canada. Its preferred habitats include fields, lawns, riverbanks, pastures, and along roadsides and railroad tracks. It is considered an invasive species in the states of New Hampshire, Wisconsin, and West Virginia. The problem with hedge bedstraw is that it competes with field crops, crowding them out for moisture and soil nutrients. It also has a toxin that is poisonous to animals. To control spread, pull the plants from the soil including the underground rhizome system, or mow the plants to reduce seed production.