The thallus is lithophytic, standing upright and leafy, with a circular to irregularly lobed shape. The stalk is sturdy and when viewed in cross-section, displays a clear distinction between its outer cortex and inner medulla. The surface of the thallus often exhibits a patchy appearance, with occasional outgrowths, spines, or small leaf-like structures. It consists of a single blade. The cortex is made up of 5-7 layers of cells that arrange themselves in rows perpendicular to the surface and differentiate into an outer and inner cortex. The inner cortical cells are either rounded or star-shaped. The medullary filaments are sparse and mostly oriented in anticlinal (perpendicular to the surface) fashion. The refractive ganglionic cells have irregular shapes and are interconnected by their branches under the inner cortex. These plants display colors ranging from dark pink to reddish brown.