What we usually call cress is cress tenuifolia, which belongs to stem aquatic plants; According to the classification of landscaping, Oenanthe javanica belongs to middle and background aquatic plants; According to the classification of growth morphology, Oenanthe javanica belongs to an aquatic plant; According to the biological classification of biological parent relationship, Oenanthe javanica belongs to dicotyledonous aquatic plants, which is relatively easy to raise.