Star anise comes from an evergreen tree called Illicium verum, native to southern China and northern Vietnam. The tree produces the distinctive eight-pointed star-shaped fruit pods that are harvested, dried, and used as a spice worldwide. China dominates global production, accounting for roughly 85% of the world’s supply.
The Tree and Where It Grows
The star anise tree is indigenous to a relatively narrow band of southern China and Vietnam. In China, it grows naturally in the provinces of Guangxi, Yunnan (southeastern parts), Guangdong (western parts), and Fujian (southern parts). Guangxi Province is the heartland of production, where the trees thrive in forests and light woodland at elevations between 200 and 1,600 meters. Vietnam’s northern highlands are the other native range, though Chinese production far outweighs Vietnamese output.
The tree itself is an evergreen that can reach about 15 to 20 feet tall, with glossy leaves and small yellowish flowers. It prefers warm, humid subtropical climates with consistent rainfall and partial shade, which is why it does so well in the misty, forested hillsides of southern China. The trees take several years to begin fruiting, but once mature, they can produce harvests for decades. Farmers typically pick the fruit just before it ripens, then sun-dry the pods until they harden into the woody, reddish-brown stars you find in spice jars.
China’s Role in Global Production
China isn’t just the birthplace of star anise. It’s the overwhelmingly dominant producer. Chinese farms grow about 85% of the global supply, with Guangxi Province alone responsible for the bulk of that harvest. In 2023, China exported around 43,000 tons of star anise powder, earning approximately $280 million in foreign exchange.
The customer base for Chinese star anise has been shifting. Traditional buyers in Southeast Asia still purchase large quantities, but demand from the European Union has grown significantly, now accounting for about 22% of exports. That growth tracks closely with Europe’s expanding organic certification systems and a broader Western appetite for Asian spices. North American markets have followed a similar trend.
A Key Ingredient in Cuisine and Medicine
Star anise has been central to Chinese and Vietnamese cooking for centuries. Its warm, sweet, licorice-like flavor comes from a compound called anethole, the same molecule that gives regular anise and fennel their similar taste (despite being completely unrelated plants). In Chinese kitchens, star anise is one of the five ingredients in five-spice powder, alongside cinnamon, cloves, Sichuan pepper, and fennel seeds. It’s essential in slow-braised meats, pho broth, and spiced teas.
In traditional Chinese medicine, star anise has long been used as a digestive aid and warming herb, valued for its supposed ability to regulate chi, or life force. Modern science found a more concrete medical application: star anise is the primary natural source of shikimic acid, a chemical precursor used to manufacture oseltamivir, the antiviral drug sold as Tamiflu. For years, much of the world’s shikimic acid supply came directly from the seeds of Chinese star anise, though the extraction process is expensive and alternative production methods using bacterial fermentation have since been developed.
The Toxic Lookalike to Watch For
There’s one important distinction anyone buying or foraging star anise should know. Japanese star anise (Illicium anisatum) looks very similar to the edible Chinese variety but contains potent neurotoxins, primarily a compound called anisatin. Consuming Japanese star anise can cause seizures, severe vomiting, and other neurological symptoms. All Illicium species actually contain some level of these toxic sesquiterpene compounds, but concentrations in Japanese star anise are high enough to be dangerous.
Contamination has caused real problems. Cases of star anise poisoning have been documented in multiple countries where Japanese star anise was accidentally mixed into shipments of the Chinese spice. The two species are difficult to tell apart visually, which is why buying from reputable spice suppliers matters. If you’re purchasing star anise from an unfamiliar source, particularly loose or unpackaged, the risk of misidentification is higher. In parts of Bhutan, where both species grow, local farmers report that even a single seed from the toxic variety can cause severe gastrointestinal symptoms.