Octarrhena

Octarrhena, commonly known as grub orchids, is a genus of flowering plants from the orchid family, Orchidaceae. Plants in this genus are small, orchids with short stems, thin roots, short, thick, fleshy leaves arranged in two ranks and tiny flowers. The labellum is rigidly attached to the base of the column. There are about fifty species native to areas from Sri Lanka and Malesia to the Western Pacific.

==Description== Orchids in the genus Octarrhena are small epiphytic, lithophytic or terrestrial herbs with thin roots and short stems with short, thick, fleshy leaves, their bases sheathing the stem. A large number of tiny, usually white, cream-coloured, yellowish or greenish flowers are arranged on a flowering stem arising from a leaf axil. The sepals and petals are free from each other, the petals usually much smaller than the sepals. The labellum is small, unlobed, rigidly fixed to the column and lacks a spur.