纖細線柱蘭屬地生蘭。葉深綠色，呈卵形，長約1－4厘米。花瓣綠白色，萼片橄欖綠色或棕綠色；唇瓣白色，帶淡黃色或橙色。纖細線柱蘭花期為九月至十二月，一般可生長於溪澗旁，腐殖質豐富的地方或岩石上。纖細線柱蘭廣泛分佈於東南亞及部分中國南部。於本地現時纖細線柱蘭被列為近危物種。

Cleric’s collar orchid (Zeuxine gracilis) is a terrestrial orchid. Leaf dark green with cauline, ovate;1-4 cm long.  Sepals olive- green to brownish-green, petals greenish-white.  Lip white, tinged yellow or orange. Zeuxine gracilis flowering from late September to December. It can be found near streams, growing on the forest floor or on rocks with rich humus. Zeuxine gracilis is widespread in Southeast Asia and southern China. It is currently classified as Near Threatened（NT）loacally.