Photo: Andreas Kunze, CC BY-SA 3.0 (via Wikimedia Commons)

Cordyceps

Cordyceps militaris

Also known as Caterpillar Fungus (common name properly belonging to its wild cousin, Ophiocordyceps sinensis), Dong Chong Xia Cao (loosely, "winter worm, summer grass"), Militaris Cordyceps, Orange Caterpillar Fungus

At a glance

Family

Cordycipitaceae (a fungus, not a botanical plant family)

Type

Parasitic fungus (entomopathogenic, meaning it grows on insect hosts in the wild)

Parts used

Fruiting body (the orange, finger-like club), and sometimes the mycelium it grows from

Size

Slender orange to reddish-orange clubs, typically 2 to 8 centimeters tall, growing singly or in small clusters

Bloom

Not a flowering plant; fruiting bodies (the orange clubs harvested for use) appear whenever conditions are humid and mild, most often through spring and fall in cultivation

Habitat

Cool, humid forest floors and grasslands across temperate Asia, where the wild fungus grows from moth and butterfly larvae buried in leaf litter or soil; almost all Cordyceps militaris sold today is cultivated indoors on sterilized grain rather than gathered from insects

Acquisition

Grow or buy

Traditional remedies in HerbSense

Key benefits

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Traditionally supports stamina

Traditionally eases labored breathing

Traditionally used for vitality

Traditionally supports immune resilience

Traditional uses

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Long before it reached wellness shelves in the West, cordyceps held a revered place in Chinese and Tibetan herbal traditions, where herders first noticed yaks grazing on the strange orange growths seemed to gain unusual vigor. The wild form, Ophiocordyceps sinensis, became so treasured as a tonic for stamina, breath, and recovery from illness that it was once worth more than its weight in silver, gathered by hand from high Himalayan grasslands. Cordyceps militaris, its easier-to-cultivate cousin, was traditionally valued in much the same way and today offers a way to carry that old tonic tradition forward without stripping fragile alpine meadows.

How to grow & use it

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Pairs well with

✦Astragalus root
✦Panax ginseng
✦Goji berry (Lycium)

Substitutes

✦Reishi mushroom
✦Rhodiola rosea

Choose it when

“For the quiet mornings when you want a little more fire in the furnace and breath that comes easier.”

Did you know?

In the wild, Cordyceps militaris begins its life inside a moth or butterfly larva buried underground, then sends a single orange club pushing up through the soil the following spring, which is how it earned its old folk description as 'winter worm, summer grass.' The fungus sold in shops today, however, is almost always grown the gentler way, on trays of sterilized rice or grain, with no insect involved at all.

Safety

Cordyceps is generally safe in traditional food-like amounts, but it may enhance blood-thinning medications and affect blood sugar, so use caution with anticoagulants or diabetes medication. It may also stimulate immune activity, so those with autoimmune conditions or on immunosuppressants should be careful, and it is best avoided during pregnancy and breastfeeding.