The Lex Luthor mushroom strain produces caps that typically measure 50-75mm in diameter when mature. Initially, the caps are reddish cinnamon-brown in color, but they transition to a golden brown shade as they mature. The cap shape changes from convex to plane as it matures, featuring an obtuse umbo at its center.
This strain is characterized by small spots on the cap, which are the remnants of its universal veil. When moist, the caps become sticky to the touch. The flesh of this strain is white and turns blue-green when bruised. Its stems grow up to 200mm in length, have a pale yellow color, and turn blue-green when bruised. The stems have a persistent membranous annulus ring from its partial veil, where spores will begin to collect once mature.
