Crepidium

Crepidium, commonly known as 沼兰属 (zhao lan shu) or spur orchids is a genus of about three hundred species of orchids in the family Orchidaceae. Plants in this genus are evergreen, mostly terrestrial plants with short stems lying on the ground, two or more relatively large, pleated leaves and small, non-resupinate flowers with spreading sepals and petals. The genus is widely distributed in the tropics.

==Description== Orchids in the genus Crepidium are evergreen, sympodial, mostly terrestrial plants with fleshy stems lying on the ground although a few species are epiphytes. There are two to many relatively large, pleated leaves with their petioles wrapped around the stem, the leaves sometimes lasting for up to three years. Small or tiny, non-resupinate flowers are borne along the end of the flowering stem. The flowers are green, yellow, red, brown or purple and have spreading sepals and petals. The dorsal sepal is usually longer than the lateral sepals and the petals usually shorter and narrower than the sepals. The labellum is erect, flat and usually undivided with two ear-like lobes near its base. The column is short and has two relatively large wings. No nectar is produced and there are two pairs of waxy, yellow pollinia.