Angelica sinensis, commonly known as "ong quai" or "female ginseng" is a herb from the family Apiaceae, indigenous to China. Its drying root is commonly known in Chinese as Radix Angelicae Sinensis, or Chinese angelica (traditional Chinese: 當歸; simplified Chinese: 当归; pinyin: dāngguī) and is widely used in Chinese traditional medicine to treat gynecological ailments, fatigue, mild anemia and high blood pressure. Chinese angelica possesses the distinction of being one of the few good non-animal sources of Vitamin B12, along with some varieties of yeast and microalgae like spirulina.. It has analgesic, anti-inflammatory, antispasmodic and sedative effects. The plant's phytochemicals consist of coumarins, phytosterols, polysaccharides, ferulate, and flavonoids.