Keywords: Bidens cernua NRCS-003.jpg en Bidens cernua L - nodding beggartick - United States IA Scott Co Davenport Nahant Marsh 2002 2002 http //plants usda gov/java/largeImage imageID bice_003_avp tif Jennifer Anderson United States IA Scott Co Davenport Nahant Marsh 2002 other versions PD-USGov Bidens cernua |