Colquhounia elegans Wall., Pl. Asiat. Rar. 1: 65 1830. (syn: Colquhounia martabanica Kurz ex Prain);
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Bangladesh to China (Yunnan) and Indo-China: Bangladesh, Cambodia, China South-Central, Laos, Myanmar, Thailand, Vietnam as per POWO;
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References:
POWO  Catalogue of Life  The Plant List Ver.1.1  WCSP  IPNI  GBIF (High resolution specimens) High resolution specimen  Flora of China  IBIS Flora (Colquhounia elegans var. tenuiflora (Hook.f.) Prain) Wikipedia  Plant illustrations  Kun