Cordyceps militaris Identity & Plant Part
The botanical entity is Cordyceps militaris (L.) Fr., a fungus that in nature grows from buried insect pupae and that is raised commercially on grain media such as brown rice. The part used is the fruiting body, which forms orange club-shaped stromata and gives the species its common name, orange caterpillar fungus.
Mycelium and the grain it was grown on are not the ingredient here. The name “cordyceps” is traded for three different materials: the fruiting body, mycelial biomass from culture, and the wild caterpillar fungus. They differ in composition and in cost.
The wild caterpillar fungus is Ophiocordyceps sinensis from the Tibetan plateau. DNA work in 2007 showed that it is unrelated to most Cordyceps species and moved it to a different family, the Ophiocordycipitaceae, while C. militaris is the type species of the genus Cordyceps itself.












