Polypodium glycyrrhiza a licorice-flavored tea. It may be used as a medicine for colds and respiratory conditions by indigenous peoples. It is considered an important medical plant and may have been used similar to cough drops. Since the rhizome is so sweet even in its naturally occurring state, and since the chemical is not a saccharide, it is possible that this compound could be used as a natural alternative to traditional sweeteners. Polypodium glycyrrhiza Polypodium glycyrrhiza, commonly known as licorice fern, many-footed fern, and sweet root, is a summer deciduous fern native to western North America, primarily in a narrow strip in
Cyanea glabra hawaiiense", "Pipturus albidus", "Coprosma" spp., "Wikstroemia oahuensis", "Clermontia kakeana", "Psychotria" spp., "Sadleria" spp., "Cyrtandra spathulata", "Touchardia latifolia", "Freycinetia arborea", and "Cyanea elliptica". The remaining 12 plants are part of one population divided into two subpopulations. Threats to the species include exotic plants, feral pigs, and landslides. Cyanea glabra Cyanea glabra is a rare species of flowering plant in the bellflower family known by the common name smooth cyanea. It is endemic to Maui, where there are twelve plants remaining in the wild. It was federally listed as an endangered species of the United States with nine other Maui Nui endemics