Acorus calamus is a species of flowering plant with psychoactive chemicals. It is a tall wetland monocot of the family Acoraceae, in the genus Acorus. Although used in traditional medicine over centuries to treat digestive disorders and pain, there is no clinical evidence for its safety or efficacy – and ingested calamus may be toxic – leading to its commercial ban in the United States.
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss.
Calamus compsostachys is a species of flowering plant in the family Arecaceae. It is found only in China. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests.
Calamus egregius is a species of flowering plant in the family Arecaceae. It is found only in the Hainan region of China. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests.
Licuala dasyantha is a species of palm tree in the family Arecaceae.
Plectocomia microstachys is a species of flowering plant in the Arecaceae family. It is endemic to Zhōngguó/China. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. It is threatened by habitat loss.
Trachycarpus nana is a species of flowering plant in the family Arecaceae. It is found only in China. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Adiantum fengianum is a species of maidenhair fern endemic to China. Its natural habitat is temperate forests. It is threatened by habitat loss.
Helicia is a genus of 110 species of trees and shrubs, constituting part of the plant family Proteaceae. They grow naturally in rainforests throughout tropical South and Southeast Asia, including India, Sri Lanka, Indochina, Peninsular Malaysia to New Guinea and as far south as New South Wales.
Helicia shweliensis is a species of plant in the family Proteaceae. It is endemic to China, where it is confined to Yunnan. It is threatened by habitat loss. The causes of habitat loss are attributed to a variety of factors, but the most prevalent factors include the destruction of forests in favor of constructing plantations for the production of cash crops.
Lastreopsis subrecedens is a species of fern in the family Dryopteridaceae. It is endemic to China. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Arachniodes tsiangiana is a species of fern in the family Dryopteridaceae. It is endemic to China. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Miliusa horsfieldii is a species of plant in the Annonaceae family. It is recorded from China and Indo-China. It is threatened by habitat loss.
Aleuritopteris albofusca is a species of fern in the family Pteridaceae. It is endemic to China, including Tibet. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Aleuritopteris grevilleoides is a species of fern in the family Pteridaceae. It is endemic to China. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Stenochlaena hainanensis is a species of fern in the family Blechnaceae. It is endemic to China. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss.
Woodsia indusiosa is a species of fern in the family Woodsiaceae. It is endemic to China. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Calamus tenuis is a species of flowering plant in the family Arecaceae. It is native to India, Assam, Bangladesh, Bhutan, Cambodia, Laos, Burma, Thailand, Vietnam, Java and Sumatra.
Calamus nambariensis is a species of flowering plant in the family Arecaceae. It is found in Burma, Laos, Vietnam, Thailand, Nepal, Bhutan, Bangladesh, the Assam region of India and the Yunnan region of China.
Part of a group, the subfamily Calamoideae, whose members are usually called rattans in English, Calamus godefroyi, is a climbing plant, and part of the Arecaceae, or palm, family.
