Roscoea megalanthaRoscoea megalantha is a species of flowering plant in the ginger family Zingiberaceae, native to Bhutan and India. It was formerly included within Roscoea purpurea, but it was described as a separate species in 2017.TaxonomyRoscoea megalantha was first described as a separate species in 2017. Previously it had been treated as merely a white form of Roscoea purpurea. The plant was given its scientific name for its large flowers.DistributionRoscoea megalantha occurs in the eastern parts of Bhutan and Arunachal Pradesh in India from 1800 to 3500 m above sea level.