A, Daqing [dq and ng]?
1, deciduous shrub. It is 1-2 meters high and its branches are yellow-brown. Leaves opposite, oval or oval, whole or sparsely serrated, dark green on the surface, light green on the back, and glabrous on both sides. Corymbose panicle, white. Berry obovate or spherical, blue. Leaves and roots can be used as medicine.
2, the alias of the picture pigment flat blue.
Li Mingzhizhen's "Compendium of Materia Medica, Jin Shisan Discrimination": "Painters use it, and its color is green, commonly known as Qing, Chu and Shu."
Second, the green pupil [q and ng tó ng]?
Black pupils.
Song Ceng Gong's poem "Send Judge Yan Shu" says: "A gentleman is green and blue under green oil."