Alkanna tinctoria, the alkanet or dyers' bugloss, a plant species
Alkannin is a natural dye that is obtained from the extracts of plants from the borage family Alkanna tinctoria that are found in the south of France.
Isatis tinctoria | Roccella tinctoria | Indigofera tinctoria | Genista tinctoria | Alkanna tinctoria | Weinmannia tinctoria | Morinda tinctoria | Maclura tinctoria | Leea tinctoria | Gunnera tinctoria | Ficus tinctoria | Chrozophora tinctoria | Baptisia tinctoria |