Costus speciosus (Koen. ex Retz.) J. E. Smith
Family : Costaceae
Local name : Jam-lakhuti (As.)
Shrub with usually spirally twisted stem, leaves oblanceolate-obovate, villous beneath, spike terminal, compact, ovoid or ellipsoid; bracts greenish-red, becoming bright red in age; flowers white; lip obovate-suborbicular, white with a median yellow, hairy band towards base; capsules globose or oblong.
Distribution : Common in damp marshy areas and also occasionally cultivated as ornamental plant.
Uses : Rhizome used in whooping cough and jaundice.
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