Illicium verum is a medium-sized evergreen tree native to northeast Vietnam and southwest China. A spice commonly called star anise, staranise, star anise seed, Chinese star anise, or badian that closely resembles anise in flavor is obtained from the star-shaped pericarps of the fruit of I. verum which are harvested just before ripening. Star anise oil is a highly fragrant oil used in cooking, perfumery, soaps, toothpastes, mouthwashes, and skin creams. About 90% of the world's star anise crop is used for extraction of shikimic acid, a chemical intermediate used in the synthesis of oseltamivir (Tamiflu).
Illicium comes from the Latin illicio meaning "entice".
The name "badian" appears to derive, via French badiane, from the apparently descriptive Chinese name for it, , pinyin: b?ji?o, lit. "eight horns". However, a derivation from the Persianb?diy?n, "fennel", exists, with the Oxford English Dictionary indicating that its origin before that is unknown.
Star anise contains anethole, the same compound that gives the unrelated anise its flavor. Recently, star anise has come into use in the West as a less expensive substitute for anise in baking, as well as in liquor production, most distinctively in the production of the liqueurGalliano. Star anise enhances the flavour of meat.
It is also used in the French recipe of mulled wine, called vin chaud (hot wine). If allowed to steep in coffee, it deepens and enriches the flavor. The pods can be used in this manner multiple times by the pot-full or cup, as the ease of extraction of the taste components increases with the permeation of hot water.
Star anise is the major source of the chemical compound shikimic acid, a primary precursor in the pharmaceutical synthesis of the antiinfluenza drug, oseltamivir (Tamiflu). An industrial method for the production of shikimic acid using fermentation of E. coli bacteria was discovered in 2005, and applied in the 2009 swine flu outbreak to address Tamiflu shortages, also causing price increases for star anise as a raw material of shikimic acid. As of 2018, fermentation of E. coli was the manufacturing process of choice to produce shikimic acid for synthesis of Tamiflu.. Study shows Star Anise can be used as anti quorum sensing and anti-biofilm agent in food matrix. 
^Wang, G. W.; Hu, W. T.; Huang, B. K.; Qin, L. P. (2011). "Illicium verum: A review on its botany, traditional use, chemistry and pharmacology". Journal of Ethnopharmacology. 136 (1): 10-20. doi:10.1016/j.jep.2011.04.051. PMID21549817.
^MD Ramim Tanver Rahman, Zaixiang Lou, Jun Zhang, Fuhao Yu, Yakindra Prasad Timilsena, Caili Zhang, Yi Zhang, and Amr M. Bakry (2017) Star Anise (Illicium verum Hook. f.) as Quorum Sensing and Biofilm Formation Inhibitor on Foodborne Bacteria: Study in Milk. Journal of Food Protection: April 2017, Vol. 80, No. 4, pp. 645-653. https://doi.org/10.4315/0362-028X.JFP-16-294
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^Lederer, Ines; Schulzki, G; Gross, J; Steffen, JP (2006). "Combination of TLC and HPLC-MS/MS methods. Approach to a rational quality control of Chinese star anise". Journal of Agricultural and Food Chemistry. 54 (6): 1970-1974. doi:10.1021/jf058156b. PMID16536563.