ONCE used as a DYE - INFO
Plants in this category were once used as a dye (or pigment) in the dyeing industry. Nowadays most dyes are manufactured by chemical synthesis.
The colour of the dye (or pigment) is shown by the adjacent coloured square.
Some plants produce more than one colour of dye/pigment; those are shown further down with a coloured square for each dye colour they produce.
The difference between a dye and a pigment is that the first will dissolve in the solvent used to deliver the colouring agent. Pigments do not dissolve in the transfer medium, and are usually ground up and into another but transparent powdered solid such as aluminium hydroxide, to form a fine powder, which can then be mixed with a liquid to form a paste or slurry.
A red [P] after the name, such as on the entry for