Cymbidium erythraeum

Cymbidium erythraeum Lindl., J. Proc. Linn. Soc., Bot. 3: 30 (1858) (syn: Cymbidium hennisianum Schltr. ; Cyperorchis hennisiana (Schltr.) Schltr. );
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Himalaya to S. Central China: Assam, China South-Central, East Himalaya, Myanmar, Nepal, Tibet, Vietnam, West Himalaya as per POWO;
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Common name: Spotted-Lip Cymbidium
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Images and details from Jambey Tsering ji:

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References:
POWO  Catalogue of Life  Flowers of India