Luisia siamensis is an orchid species identified by Rolfe ex Downie in 1925. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Luisia brachystachys.
ORIGIN: Found in the Chinese Himalayas to southern Yunnan Province, China and Assam India, Bangladesh, eastern Himalayas, western Himalayas, Andaman Islands, Myanmar, Thailand, Laos and Vietnam in forests along valleys on tree trunks at elevations of 200 to 1900 meters.
DESCRIPTION: Small sized, hot to cool growing epiphyte with an erect, woody stem carrying a few terete, straight to curved, jointed leaves that blooms in the spring on a sessile, .4 [1 cm] long, few  flowered inflorescence that arise in an open umbel held very close to the stem and leaf axil.
FLOWER SIZE: 1/4 to 0.4 inches [7 to 10 mm]
-- information provided by Jay Pfahl, author of the
Internet Orchid Species Encyclopedia (IOSPE).
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