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Les mûriers blancs de l’esplanade des Justes à Tours
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Ces arbres appartiennent à la famille des Moracées. C’est un arbre qui peut atteindre 30 mètres de haut. Il porte des fruits blancs, rosés, violets ou noirs.
Le roi Louis XI a introduit la culture de ces arbres en Touraine au 15ème siecle afin de promouvoir l’élevage des vers à soie. En effet les feuilles du mûrier blanc, Morus alba, constitue la nourriture préférée du ver à soie (bombyx du mûrier).
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