Job's tears are planted widely in China. Its grain is wide oval or oblong oval,4-8mm long, 3-6mm wide, teardrop shape, so it's called Job's tears. The surface of the grain is white and glossy with tawny remnant peel occasionally. One end is blunt round, the other end is a little dent with light maple dot shape umbilici. The back is bulge round. The ventral side is a wide and deep ditch.