Provided herein are synergistic herbicidal compositions containing (a) a compound of formula (I): 4-amino-3-chloro- 5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)pyridine-2-carboxylic acid or a derivative thereof, or an agriculturally acceptable salt or ester thereof and (b) glufosinate-ammonium, glyphosate dimethylammonium, glyphosate isopropylammonium, glyphosate trimesium, glufosinate or glyphosate, or an agriculturally acceptable derivative thereof. The methods and compositions herein provide control of undesirable vegetation, e.g., in direct-seeded, water-seeded and transplanted rice, cereals, wheat, barley, oats, rye, sorghum, com or maize, sugarcane, sunflower, oilseed rape, canola, sugar beet, soybean, cotton, pineapple, vegetables, pastures, grasslands, rangelands, fallowland, turf, tree and vine orchards, plantation crops, aquatics, industrial vegetation management (IVM) or rights of way (ROW).