Hedychium griffithianum Wall., in Hooker’s J. Bot. Kew Gard. Misc. 5: 369 (1853) (syn: Gandasulium griffithianum (Wall.) Kuntze; Hedychium griffithianum var. glanduligerum C.B.Clarke ex Baker);
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Assam to Thailand: Assam, Bangladesh, Myanmar, Thailand as per POWO;
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Hedychium glaucum Roscoe: 10 images.
Hedychium gracile var. calcaratum has no distribution in Nepal and I could not find its information in POWO, GBIF, CoL, WFO and IPNI.
Hedychium gracile var. calcaratum -This combination is yet to be published.
You can also check with H. griffithianum also.
Looks like Hedychium griffithianum Wall. also but could not finalize !
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References:
POWO Catalogue of Life GBIF (High resolution specimens) IBIS Flora (Flora of British India)
https://www.himalayangardens.com/hedychium-griffithianum
https://www.shootgardening.com/plants/hedychium-griffithianum
