Calanthe herbacea

Calanthe herbacea Lindl., Fol. Orchid. 6: 10 (1855) (syn: Alismorkis elytroglossa (Rchb.f. ex Hook.f.) Kuntze ; Alismorkis herbacea (Lindl.) Kuntze; Calanthe elytroglossa Rchb.f. ex Hook.f. );
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Sikkim to China (S. Yunnan, S. Guangxi), N. Taiwan: Assam, China South-Central, China Southeast, East Himalaya, Myanmar, Taiwan, Thailand, Tibet, Vietnam as per POWO;
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Common name: Herb Calanthe
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Images and details from Jambey Tsering ji: 3 images.

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References:
POWO  Catalogue of Life  Flowers of India