鐮翅羊耳蒜 (Liparis bootanensis)屬附生蘭, 葉呈長圓及披針形，長約4.5-15厘米。花顏色為綠色，隨時間會變成橙色，花瓣狹長橢圓形。唇瓣綠色，亦會轉為橙色。鐮翅羊耳蒜花期為八月到翌年二月，一般可生長於陡峭而潮濕的岩石上或溪流旁的陰暗處。鐮翅羊耳蒜分佈於熱帶和溫帶亞洲區，現時本地列為近危物種。

Bhutan liparis (Liparis bootanensis) is an epiphytic orchid, leaves are oblong-lanceolate, 4.5-15cm long. Flowers non-resupinate, green, lip in olive-green, both will turn orange with age. Petals are linear filiform. Liparis bootanensis flowering from August to February  Generally it grows on moist and sloped rock, or shade places near streams. Liparis bootanensis widespread in tropical to temperate Asia. It is currently classified as Near Threatened (NT) species in Hong Kong.