Botanical atlas

Zhu Ling (Umbrella Polypore)

Polyporus umbellatus

Long before it had a Latin name, this humble underground fungus was known in Chinese medicine as Zhu Ling, prized for centuries as a gentle way to move stagnant fluid through the body. Herbalists reached for it in formulas meant to ease swelling, support healthy urination, and restore balance after damp, heavy conditions settled into the body. It rarely worked alone, usually appearing alongside companion roots and fungi in classical decoctions passed down through generations of practitioners. Its quiet reputation as a fluid-regulating ally has kept it a steady presence in the apothecary cabinet for well over a thousand years.

Safety.

Zhu ling is not known to be toxic, but it has a diuretic effect, so it should be used cautiously alongside prescription diuretics, lithium, or other medications affected by fluid shifts. It is generally avoided during pregnancy and breastfeeding.