dyer's woad (Isatis tinctoria, syn. Isatis indigotica). / Indigofera decora, a kind of indigo plant (summer wisteria). / Japanese indigo (Persicaria tinctoria), a flowering plant in the buckwheat family.

covellite

A brown resinous substance found in crude indigo.

A white crystalline powder obtained by reduction from indigo blue, and by oxidation easily changed back to it.

A dyestuff, isomeric with indigo blue, obtained from crude indigo as a dark brown amorphous powder.

Amorpha / Dalea / Psorothamnus

A snake of the genus Drymarchon, species of which are found the southeastern US, Texas, and northern South America.

(idiomatic) Synonym of lokao

indigotin

plural of indigo snake