Diplazium esculentum, the vegetable fern, is an edible fern found throughout Asia and Oceania. It is probably the most commonly consumed fern.The genus Diplazium is in the family Athyriaceae, in the eupolypods II clade of the order Polypodiales, in the class Polypodiopsida.
This plant is a large perennial fern with ascending rhizome of about 20 cm high and covered with short rufous scales of about 1 cm long. The plant is bipinnate with long brownish petioles, and the petiole base is black and covered ...