Galium tinctorium (Stiff Marsh Bedstraw)

''Galium tinctorium'', the stiff marsh bedstraw, is a species of plants in the Rubiaceae. It is widespread and common across the eastern part of North America, from Texas to Labrador and from Minnesota to Florida, plus eastern and central Mexico and the Dominican Republic. It is classed as a noxious weed in some parts of the northeastern United States.