The Chinese medicine hu ma is also known as hu ma ren. Hospitals on the clinical application of hu ma ren a drug and the deployment of coping with the actual payment varieties are very different, resulting in disputes between doctors and patients and affect the clinical quality of Chinese medicine, from time to time. Hu Ma a first contained in the "Shen Nong Ben Cao Jing": "Hu Ma, taste sweet and flat, the main injury in the false win, make up for the five internal, beneficial to the gas power, long muscles, fill the marrow brain. Served for a long time, light body does not age. A giant victory, the leaf green strawberry, raw Sichuan Ze." No description of plant morphology, but from the "giant victory" a, should be referring to the plant "sesame" undoubtedly. Later generations of grass literature are recorded. Liang - Tao Hongjing in his "Materia Medica Classic Annotated" Hu Ma item cloud: "grain cereals, but this is good. Chun black name Jusheng, giant, large, is also Dasheng. Originally born in Dawan, so the name Hu Ma." Affirmation of the Hu Ma is a huge victory, that is, today's sesame. And explains the origin of the name of hemp. Tang - "Newly Revised Materia Medica" detailed record notes "Materia Medica Classic Collected Notes" content: "Valley, but this is good. Chun black name Jusheng ...... and stem square name Jusheng. Stem round name Hu Ma."

By the Song Dynasty, hu ma a drug appeared the phenomenon of the same name. Song people, Shen Kuo in the "Mengxi Bianchuan" in the cloud: "Hu Ma straight is today's oil hemp (sesame), no other way to say, I have been in the "Ling Wan Fang" on it. Its corner has six-angled, eight-angled. China's hemp, today's 'marijuana', there are real for tho hemp, no real for nettle-hemp hemp, also known as 'hemp peony' ". Zhang Qian began from Dawan to get oil hemp seed, also known as hemp, Hu to HuMa alibi, said HanMa for marijuana. Shen Kuo will be China's native sesame and China's native marijuana (flaxseed), Zhang Qian through the Western Regions brought back the oil hemp (hemp) and other ways of identification, said in great detail. Song's discovery of Chinese medicine with the more confusing hu ma, so said: "Hu Ma, all of them say different, stop is this fat hemp, no other instrument, the species out of Dawan, so that hu ma. Now out of Hu, are fat, its lines magpie, its color purple and black, so so different, take oil is also more. Therefore, the poem: under the pine rice hu ma, this is what is eaten cereals undoubtedly, and white oil hemp for the first class ......." Li Shizhen in his "Compendium of Materia Medica" in the cloud: "hu ma that is fat hemp. There are late, early two species, black, white, red three colors, their stems are square ...... now between the market, because the stems are divided into square and round said, so to C. C. Azalea pseudo-jumbo wins, to its hemp seeds and large quinoa for the hu ma error and error." Li Shizhen and individually contained a medicine of flax, from the treatment of disease should be flax family plant Linum usitatissimum. Tu Jing Materia Medica" contained flax is not Li Shizhen referred to flax seed, is a plant in the family of Labiatae, the seeds of large-flowered motherwort. [Clinical Manual of Traditional Chinese Medicine] in the black sesame item: "[prescription name]: black fat hemp, black sesame, hu ma". "Da Hu Ma: the seeds of Linum usitatissimum, family Linaceae, alias deflowering Hu Ma, sweet in flavor, slightly warm. Functions expectorant, laxative, suitable for rheumatic sores and ringworm, stool dryness and other conditions. "Chinese Medical Dictionary": "Hu Ma, Ceres. Don't record the top grade, rumor has it that Han Zhangqian made the Western Regions, got its seed and returned, hence the name." "Tu Jing Materia Medica" contained flaxseed should be the seeds of Labiatae plant large-flowered motherwort, not the present-day flax plant Linum usitatissimum ......