Epipogium

Epipogium, commonly known as ghost orchids (Chinese: 虎舌蘭; pinyin: hǔshé lán or 上鬚蘭; shàngxū lán), is a genus of four species of terrestrial leafless orchids in the family Orchidaceae. Orchids in this genus have a fleshy, underground rhizome and a fleshy, hollow flowering stem with small, pale coloured, drooping, short-lived flowers with narrow sepals and petals. They are native to a region extending from tropical Africa to Europe, temperate and tropical Asia, Australia and some Pacific Islands.