What is Polypodium vulgare?

The Polypodium vulgare is a fern that belongs to the polypodiaceae family. It has been used in traditional medicine as a vermifuge. In cooking, it is used for its sweet taste. Its fronds have triangular leaflets and they reach all the way back to the stem.

According to Wikipedia.org, the rhizome of this plant is 500 times sweeter than sugar. The fern is common in France, Scandinavia and Carpathian mountains. It is also found in the Mediterranean region. If it is to be grown in the house, it should be watered well. It should also be planted in well-drained soil, away from direct sunlight,colds, and winds.