mangemange or Bushman's mattress (Lygodium japonicum)

Lygodium japonicum is a species in the Lygodium genus. It is commonly known as mangemange or Bushman's mattress This name is accepted name for the species in the family Schizaeaceae subfamily Lygodioideae, . . This species is found in Assam, Bangladesh, Cambodia, Caroline Is., China North-Central, China South-Central, China Southeast, East Himalaya, Hainan, India, Japan, Jawa, Korea, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, Nansei-shoto, Nepal, New Guinea, Pakistan, Philippines, Sri Lanka, Sulawesi, Sumatera, Taiwan, Thailand, Tibet, Vietnam, West Himalaya.