Vanda coerulea, commonly known as blue orchid, blue vanda or autumn lady's tresses, is a species of orchid found in Assam and neighbouring Khasi hills with its range extending to China (southern Yunnan). It is known as kwaklei in Manipuri and vandaar in Sanskrit. It has bluish purple flowers (Thelymitra crinita is the only orchid that has true blue flowers) which are very long lasting compared to other orchids. The plant bears up to 20 to 30 spikes.
The juice of flower is used as eye drops against ...