Abstract
Identification of different species of Curcuma based on morphological and anatomical characters is difficult. Under commercial cultivation, the crop is usually harvested before flowering. Variation in number and arrangement of primary and secondary vascular bundles, orientation of endodermal layer, number and shape of curcumin cells and starch grains provide some tools for identification at this level but these are not completely dependable. The present study made it possible to easily identify five important species Curcuma longa L., C. amada Roxb., C. zanthorrhiza Roxb., C. aromatica Salisb. and C. aeruginosa Roxb. based on pseudostem and rhizome characters in the vegetative phase. A simple and easy method for identification of the five species of Curcuma by observing the rhizome pigmentation is reported.
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