The bamboo orchid (Arundina graminifolia; syn. Arundina bambusifolia Lindl., Arundina speciosa Blume, Bletia graminifolia D.Don) is a species of orchid and the sole of the genus Arundina. This tropical Asiatic genus extends from India, Nepal, Thailand, Malaysia, Singapore, South China to Indonesia and across the Pacific Islands. It has been introduced in Puerto Rico, Costa Rica, Panama and Hawaii.
The bamboo orchid is a terrestrial multiperennial orchid with reedy stems, forming into large clumps growing to a height between 70 cm and 2 m.
The plaited linear leaves are oblong lanceolate, with a length of 9 to 19 cm and a width of 0.8 to 1.5 cm. The apex is acuminate. There are amplexicaul (clasping the stem) sheathing stipules.
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