1, the leaves are different: Qingqi red seedlings are small, the plants are thin, the leaves are red, and the plants are strong, which is an intuitive representation.

2. Different petioles: the petiole villi of Qingqi Hongyan are long and dense, and the petiole villi of Daye Hongyan are short and sparse.

3, the flowers are different: the bluestone safflower is small, the distance between the five petals is obvious, the stamens are dry and sterile, and the pistil is thin.