Where is the origin and distribution of Job's tears? The latest summary is here
Job's tears (Coix lacryma-jobi) is an annual plant of the Poaceae family, also called medicinal corn, water corn, late rosary, six-grain rice, stone millet, coix seed, etc. It is mainly produced in Hubei Qichun, Hunan, Hebei, Jiangsu, Fujian, Guizhou and other provinces, among which the one originating from Siliushan Village in Qichun is the most famous. Let's take a look below!
Origin and Distribution of Job's tears
Job's tears is mainly produced in Liaoning, Hebei, Shanxi, Shandong, Henan, Shaanxi, Jiangsu, Anhui, Zhejiang, Jiangxi, Hubei, Hunan, Fujian, Taiwan, China, Guangdong, Guangxi, Hainan, Sichuan, Guizhou, Yunnan and other provinces and regions, among which the one originating from Siliushan Village in Qichun is the most famous.
Internationally, Job's tears is distributed in Southeast Asia and the Pacific islands, and is cultivated or naturalized in the tropical and subtropical zones of the world, as well as in the hot and humid zones of Africa and the Americas.
Habitat Environment of Job's tears
Job's tears prefers a mild and humid climate, avoids high temperatures and stuffiness, is not cold-tolerant, and avoids drought. It especially requires moist soil during the seedling, heading and grain-filling stages. Seedlings begin to emerge at 15°C, and when the temperature is above 25°C and the relative humidity is above 80%-90%, the seedlings grow rapidly.
Job's tears seeds germinate easily. The optimum germination temperature is 25-30°C, the germination rate is about 85%, and the seed lifespan is 2-3 years. It mostly grows in moist places beside houses, ponds, rivers and ditches, valleys, mountain streams or farmland prone to waterlogging, and is commonly found at altitudes of 200-2000 m, either wild or cultivated.
China's Hometown of Job's tears
On July 20, 2012, the China National Association of Grain Sector awarded Xingren County, Guizhou Province the title of “China's Hometown of Coix Seed”.
On October 14, 2014, the China Vegetable Marketing Association awarded Ninghua County, Fujian Province the title of “China's Hometown of Coix”.