青檀 Traditional form: 青檀 Pinyin (reading): qīngtán Definitions: blue sandalwood (Pteroceltis tatarinowii Maxim), the bark of which is used to manufacture 宣紙/宣纸 Characters: 青 - nature's color; blue, green, black; young 檀 - sandalwood, hardwood; surname Traditional characters: 青 - nature's color; blue, green, black; young 檀 - sandalwood, hardwood; surname