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In the xanthenone system of the title compound, C23H20O4, the pyran ring has a maximum deviation of 0.111 (1) Å from planarity and the outer cyclo­hexene ring exhibits a puckered conformation. The three methyl­ene C atoms of the cyclo­hexene ring bonded to the pyran unit are disordered over two sets of sites [occupancies = 0.570 (3) and 0.430 (3)]. In the crystal, mol­ecules are linked by C—H...O and O—H...O hydrogen bonds, forming a two-dimensional network parallel to (110). A C—H...π inter­action occurs between these networks.
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