Galium asprellum

Galium asprellum, the rough bedstraw, is a plant species in the family Rubiaceae. It native to eastern Canada and northeastern United States, from North Carolina and Tennessee north to Minnesota, Ontario and Newfoundland. It is considered a noxious weed in New York, Pennsylvania and Vermont, and is abundantly common in the other New England states and in sections of the Great Lakes region. It is a perennial herb. Leaves are simple with three or more leaves per node. Flowers have four petals and are white in color.