Dear Pankaj Ji and all, Without flower it is very difficult to identify the *Curcuma* species. May be this plant is, *C. aeruginosa, C. xanthorrhiza *or* C. caesia*(Syn:C. zeodaria) We can easily differenciate this three species without flower by rhizome character and hairy nature. *C. aeruginosa :* After its maturity the rhizome shows bluish or violet rings *C. xanthorrhiza :* Rhizome colour yellow. *C. caesia* : Of course the rhizome shows the bluish olour. But we can identify this species by the hairy nature. In this species the hairs are present in the upper part of leaf. This is the only one *Curcuma* sp. showing this character.
-- *Prabhu Kumar K M* Scientist Plant Systematics & Genetic Resources Division Centre for Medicinal Plant Research (CMPR) & 'CMPR' Herbarium Kottakkal Arya Vaidya Sala Kottakkal, Malappuram *E-mail: [email protected]*
