Zingiber bipinianum D.K.Roy, D.Verma, Talukdar & Dutta Choud., J. Jap. Bot. 90: 298 (2015);
Assam (Meghalaya) as per POWO;
SK 2189 19 September 2019 : 13 posts by 3 authors. Attachments (4)- 1 mb or more.
Gingiber bipinianum but I guess it looks some different.
Attachments (1) – 6 mb.
Attachments (1) – 5 mb.
This seems to be different from Z. bipinianum in the nature of lateral staminodes and some other characters. Need further study for confirmation. The colour change is so common in many species. Z. wightianum form S. India is a highly variable species with the colour of the labellum varies from deep purple to yellow.
Can it be whitish form of Zingiber chrysanthum ?
Hopefully, but I am expecting this to be New to World😁!
This is certainly different from you have mentioned. Z. capitatum is having terminal inflorescence, where as others have long peduncle. Still you have to check with other newly published taxa from India and neighbouring countries.
It may be zingiber bipinianum with lateral staminodes wider than type
Thank you …, Please have a look at the clips of earlier mails in this regard !
POWO Catalogue of Life Zingersofindia A New Species of Zingiber (Zingiberaceae-Zingibereae) from Northeast India– Anupam Das Talukdar, Durgesh Verma & Dilip Kr. Roy- October 2015 Journal of Japanese Botany 90(5):298-303 (pdf)