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C. caesia Roxb
| Floral Characters | | Spike position
| Lateral | | Colour of the fertile bract
| Greenish purple | | Colour of the coma bract
| Reddish purple | | Colour of the corolla
| Red | | Colour of the labellum
| Yellow | | Anther spur
| Present |
| Rhizome Characters | |
| Rhizome colour
| Blue black | | Aroma of Rhizome
| Comphoraceous | | Flavour/taste of rhizome
| Bitter |
| Leaf Characters | |
| Colour of leaf Sheath | Green | | Leaf midrib colour | Green | | Leaf pubescence | Glabrous |
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