2,3-Dihydro-7-hydr­oxy-3-[(4-methoxy­phen­yl)methyl­ene]-4H-1-benzopyran-4-one

The title compound, C17H14O4, a homoisoflavanoid, was isolated from the twigs and stems of Caesalpinia digyna Rottler. The pyran ring adopts an envelope conformation. The symmetry-related mol­ecules are linked via O—H⋯O and C—H⋯O inter­molecular hydrogen bonds to form a mol­ecular network.