 | | PY occurs in some members of 15 plant families, including the Anacardiaceae, Bixaceae, Cannaceae, Cistaceae, Cochlospermaceae, Convolvulaceae, Curcurbitaceae, Dipterocarpaceae, Fabaceae, Geraniaceae, Malvaceae (now includes the Bombacaceae, Sterculiaceae, and Tiliaceae), Nelumbonaceae, Rhamnaceae, Sapindaceae, and Sarcolaenaceae. |