Gastrochilus obliquus is a species of orchid native to China, the Himalayas and Southeast Asia. It grows on tree trunks at forest margins. Two varieties are recognized:
- Gastrochilus obliquus var. obliquus - Sichuan, Yunnan, India, Nepal, Bhutan, Assam, Andaman Islands, Myanmar, Thailand, Laos, Vietnam
- Gastrochilus obliquus var. suavis <small>(Seidenf.) Z.H.Tsi</small> - Thailand
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