Cây chàm mèo
Cây mọc hoang ở các thung lũng ẩm ướt, các núi đá và được trồng ở các tỉnh vùng cao ở miền Bắc như Lào Cai, Lai Châu, Sơn La, Hà Giang, Cao Bằng, Lạng Sơn... để lấy cành lá để nhuộm màu vải có màu xanh chàm.
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