What is the meaning of the red flowers, green leaves and white lotus roots in the list of the gods?

Saffron, green leaves, white lotus root three teachings was originally a family, here is the list of the gods used to say that hermeneutics, interceptionism, the teachings of the Lord are Hongjun old man's disciples. The three teachings are out of the same door. In folklore, especially in the jianghu gangs, red flowers, green leaves, white lotus root means, Hongmen, Green Gang, White Lotus Sect. Saffron refers to the Hongmen, green leaf refers to the Green Gang, white lotus root refers to the White Lotus Sect.