archil: Quick Facts

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Facts

Also Known As	orchil • orseille

Photos

Close-up of orchil lichen (Roccella tinctoria) growing on a rock surface, showing its tangled, shrub-like structure.

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Topics

litmus cudbear dye cochineal saffron azo dye indigo anthraquinone dye Methylene blue triphenylmethane dye alizarin cyanine dye naphthol