This association occurs in cereal or oil-seed rape fields or on fallows in warm areas. Its relationships to temperature and soil base content are intermediate between the associations Caucalido platycarpi-Conringietum orientalis and Euphorbio exiguae-Melandrietum noctiflori. Soils are usually chernozems or brown soils developed on loess. Several endangered weed species occur in this vegetation type. Its phenological optimum is from late spring to early summer.