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Fig. 6 | Journal of Ethnobiology and Ethnomedicine

Fig. 6

From: Identity blues: the ethnobotany of the indigo dyeing by Landian Yao (Iu Mien) in Yunnan, Southwest China

Fig. 6

Tannin-rich species added to the second dyeing solution. a The large (15-cm diameter) stem of the forest liana Spatholobus suberectus. b Cut stem showing characteristic red exudate. c Cut sections of Spatholobus suberectus stem. d Sliced tubers of Dioscorea cirrhosa soaking in the water. e Residue of Dioscorea cirrhosa after dyeing. f Wild harvested Dioscorea cirrhosa tuber

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