leaf of polypody fern - polypodium vulgare. polypody stimulates bile secretion and is a gentle laxative. close up on

flora foliage background isolated nature leaf white fern plant green frond common spores sporangia polypody macro polypodium sori beauty pattern color branch botany beautiful natural growth vegetation leaves vulgare close stimulates bile secretion gentle laxative european herbal medicine traditionally treatment hepatitis jaundice