eggplant
... that dark eggplant skins were historically used by aristocratic women in China to make black dye, which they often used to stain their teeth?
... that dark <b id="mwERA"><a href="./Eggplant_production_in_China" id="mwERE" rel="mw:WikiLink" title="Eggplant production in China">eggplant</a></b> skins were historically used by aristocratic women in China to make black dye, which they often used to stain their teeth?