Indigo

Indigo, Qing Dai 青黛 Pigmentum IndicumQing Dai (TCM) The processing of Indigo(Museum Museorum, Valentini, 1704) Indigofera tinctoriaAusländische Culturpflanzen in bunten Wand-Tafeln, (?) A Block of Indian Indigo(Photo by Palladian) (Wikimedia) Botanical name: Several plants supply Indigo: Baphicacanthus cusia Polygonum tinctorium Isatis indigotica (syn Isatis tinctoria) Indigofera tinctoria, I. anil, I. argentea Parts used: Indigo extracted…