[yì yǐ rén].

Coix lacryma-jobi, a Chinese medicine name. It is the dried mature seed kernel of Coix lacryma-jobi L. var. mayuen (Roman.) Stapf of the grass family. The plant is harvested and cut in the fall when the fruit is ripe, dried in the sun, the fruit is beaten off, dried again, the shell, yellow-brown seed coat and impurities are removed, and the seed kernels are collected.

Many years ago in the mountain forest slopes can often see Job's tears, but also from time to time to collect mature seeds worn as chain beads, now it is very difficult to meet Job's tears, especially so big a person more than one high Job's tears, see feel very happy, check out the Baidu encyclopedia introduction to know Job's tears [yì yǐ] is known as the "king of the world's graminaceous plants. "

The yearly growth rate of Coix is about 1.5 percent.

Annual or perennial herbs. The fibrous roots are thicker, up to 3 mm in diameter. Culms erect, 1-1.5 m tall, with about 10 nodes. Leaf blades linear-lanceolate, up to 30 cm long, 1.5-3 cm wide, margins scabrous, midrib thick, raised on abaxial surface; leaf sheaths smooth, upper ones shorter than internodes; ligule stiff, ca. 1 mm.

Raceme axillary in bundles; female spikelet in lower part of inflorescence, enveloped in bony moniliform involucre, involucre ca. as long as spikelet; first glume of fertile spikelet proximally membranous, distally thickly papery, apex obtuse; second glume navicular, enveloped in first glume, apex thickly papery, acuminate; second lemma shorter than first lemma; palea similar to lemma and smaller, andromenosine 3, reduced; pistillode with long style; Sterile spikelet reduced to long cylindrical glumes.