is a perennial orchid species inhabiting deciduous tree forests,
with stems with ridges measuring 30-70cm in height. Leaves, 5-10 in
number, embrace branches at bases, opposite, in the oblong shape,
each 8-10cm in length. On the shoot apexes, C. falcata sets 3-12
bright yellow flowers; on their lips, there are some yellowish-brown
ridges. Bloom time: April-June.