Polypodium glycyrrhiza very often associated with Acer macrophyllum. The fern is mycorrhizal, meaning it can form root associations with the hyphae of fungi. The sweet flavor of the rhizome was once attributed to the glycoside glycyrrhizin. However, a study has shown that the flavor may actually be due to polypodoside, which is 600 times sweeter than 6% sucrose solution. Licorice fern is cultivated as an ornamental garden plant. The cultivar 'Longicaudatum' has gained the Royal Horticultural Society's Award of Garden Merit. The licorice fern is sometimes valued for its licorice-flavored rhizome. Occasionally it is chewed, and it can also be brewed into
Tolman Sweet prairie region of the Middle West, Tolman Sweet has gained the reputation of being one of the hardiest of the old New England varieties. For this reason it is often selected as a stock upon which to top-graft less hardy kinds. The tree comes into bearing at a moderately early age, and, generally speaking, is a reliable cropper, yielding from moderate to heavy crops biennially or sometimes almost annually." The same source was unable to locate the origin of the variety, perhaps coming from Massachusetts. It was among the most popular sweet varieties in orchards in New York State at