the roots of several trees of the Genus Morinda from South-East Asia, many species of Relbunium from the Americas and from the Madder plants (Rubia sp.) contain Alizarin, Rubin and other red dyestuffs.
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Rubia peregrina L.
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Rubia peregrina |
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Rubia tinctoria L.
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Rubia tinctoria |
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Rubia cordifolia L.
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Rubia cordifolia |