Parietin
（重定向自Rheochrysidin）
![Skeletal formula of parietin](/Images/godic/202502/07/Parietin.svg2730.png")
![Ball-and-stick model of the parietin molecule](/Images/godic/202502/07/Parietin_molecule_ball2730.png")
Parietin is the predominant cortical pigment of lichens in the genus Caloplaca, a secondary product of the lichen Xanthoria parietina, and a pigment found in the roots of Curled Dock (Rumex crispus). It has an orangy-yellow color and absorbs blue light.