Autumn Star Anise (秋八角) is the premium, late-season harvest of the Illicium verum tree, gathered between August and October. Because it matures slowly through the hot summer months, it is considered the gold standard in the global spice trade. It features highly developed, thick, fleshy pods packed with essential oils, making it the top choice for export, commercial extraction, and premium culinary brands.

Spring Star Anise (春八角) is harvested between February and April. Because of the shorter, colder growing season, these pods do not reach full maturity, resulting in a lighter, thinner, and less potent spice.
You can easily tell them apart using these four physical and sensory indicators:

Autumn Star Anise: The pods are remarkably thick, plump, and heavy. The "petals" (points) are wide open, fully exposing the shiny, plump, golden-yellow seeds inside.
Spring Star Anise: The pods are thin, flat, and lightweight. Many of the points remain tightly closed, shriveled, or are completely empty without mature seeds.
Autumn Star Anise: Displays a deep, uniform, rich reddish-brown or "rust" color.
Spring Star Anise: Appears much lighter, often showing a pale red, yellowish-brown, or slightly washed-out tan hue.
Autumn Star Anise: Packs a powerful, sweet, and highly aromatic licorice punch. Breaking a point instantly releases a strong, oily fragrance.
Spring Star Anise: Has a much milder, lighter, and slightly woodier scent with far less natural oil.
Autumn Star Anise: Rich, sweet, and intensely warming. Ideal for long-simmering broths, master stocks, and spice blends where the flavor needs to hold up.
Spring Star Anise: Tends to taste slightly bitter or faint, making it better suited for ground powder blends or light herbal infusions.