Patton et al., 2014. Turf Tips, Purdue Extension Document reference Patton, A.; Beck, L., 2014. Weed of the month for November 2013 is Black Medic. Turf Tips, Purdue ExtensionWeb http://purdueturftips.blogspot.fr/2014/04/weed-of-month-for-november-2013-is.htm…Citation key Patton et al., 2014Datasheets Black medic (Medicago lupulina)
