Hispidin is a natural substance. It can also be synthetised. Hispidin 4-O-β-d-glucopyranoside can be found in Pteris ensiformis whereas hispidin derivatives, such as phellibaumins, can be found in the edible mushroom Inonotus xeranticus or Phellinus. Hispidin is a precursor of fungal luciferin, a compound responsible for light emission by luminous mushrooms.