| Summary: | The genus <i>Curcuma</i> (Zingiberaceae) is a diverse group of plants widely distributed across tropical Asia, with several new species recently described in Thailand. This study documents and clarifies the taxonomic status of a new species, <i>Curcuma nivea</i> Saensouk, P.Saensouk & Boonma sp. nov., discovered in eastern Thailand, and evaluates its horticultural potential. Morphological comparisons were conducted with closely related species in the <i>Curcuma</i> subgenus <i>Hitcheniopsis</i> (Baker) K. Schum., focusing on diagnostic vegetative and floral traits. <i>Curcuma nivea</i> is characterized by its compact habit and white flowers marked with two reddish lines at the base of the labellum, lacking the yellow blotch typical of related species. Additionally, it shows the absence of both epigynous glands and anther spurs, consistent with subgeneric features. Its distinctive morphology and attractive floral display have led to its cultivation as an ornamental pot plant. The discovery of <i>C. nivea</i> contributes to the growing documentation of <i>Curcuma</i> diversity in Thailand and underscores the significance of ongoing botanical exploration and conservation. Furthermore, its compact form and unique floral traits highlight its promise for use in ornamental horticulture and breeding programs.
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