Caterpillar Fungus
Ophiocordyceps sinensis
Family: Ophiocordycipitaceae
Also called: Yarsagumba, Yartsa Gunbu, Dōng Chóng Xià Cǎo, 冬虫夏草
Overview
Parasitic ascomycete that mummifies ghost-moth caterpillars on the Tibetan plateau and Himalayan alpine meadows between 3,000 and 5,000 m. The dark club emerges from the caterpillar's head in May–July as snow melts. One of the most expensive natural products on earth ($30–$100k per kg). Strictly regulated. Medicinal, not culinary.
Season
May–Jul (snowmelt) — typical fruiting months: Apr, May, Jun.
Host trees & substrate
- Parasitised ghost-moth caterpillar (Thitarodes) in alpine meadow
Where it grows
See live fruiting predictions for Caterpillar Fungus on the forecast home page, or browse the full field guide.
Always confirm wild-mushroom identification with multiple sources and a knowledgeable local expert before consuming. Read the foraging safety guide.