Why a Human-Shaped Root Was Considered Especially Potent

The Donguibogam preserves an old identification verse for wild ginseng, and a belief that a root shaped like a human figure was special. Both point to a way of reading nature that predates modern botany.

Tucked inside the Donguibogam's otherwise clinical entry for ginseng is something unusual for a medical text: a short verse for identifying the plant in the wild, and a note that a root shaped like a human figure was considered especially potent — the origin of ginseng's old alternate name, 'spirit herb' (神草). Neither detail is decoration. Both reflect a specific, coherent way of reading the natural world.

A verse meant to be remembered, not just read

The identification verse the text preserves — 'three branches, five leaves, back to the sun and facing the shade; if you wish to find me, look near the katsura tree' — is built to be memorized and recited, not consulted from a page while standing in a forest. Passing botanical knowledge through verse, rather than prose alone, is a common feature of oral and semi-oral traditions where the person who needs the information most is often the one least likely to be carrying a book.

Reading resemblance as a sign of function

The belief that a human-shaped root carries special potency reflects a mode of reasoning sometimes called the 'doctrine of signatures' when it appears in other traditions worldwide: the idea that a plant's form itself hints at its use or power, rather than form and function being unrelated. Whether or not this reasoning holds up by modern standards, it was internally consistent within the worldview that produced it — nature was read as legible, not arbitrary.

Why the name 'spirit herb' stuck

Once a root resembling a human figure was seen as unusually potent, it followed naturally that people would treat exceptional specimens as almost animate — hence 'spirit herb' (神草), a name that treats the plant as something closer to a being than an object. That framing sits alongside, rather than replacing, the plain clinical description the Donguibogam otherwise gives for ginseng, which we cover directly on its herb page.