Galium fuscum M. Martens & Galeotti Galium fuscum M. Martens & Galeotti in Bull. Acad. Bruxelles 11: 126. 1844 sec. Borhidi 2006=Galium leucotrichum Hemsl., Diagn. Pl. Nov. Mexic.: 53. 1880 syn. sec. Borhidi 2006