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Alternate English names: staghorn moss

Kingdom: Plant

Origin in PRC Pharmacopoeia: Lycopodium japonicum Thunb. (PRC Pharmacopoeia)

Origin in unofficial sources: Lycopodium clavatum L.; Lycopodium cernuum L.; Lycopodium obscurum L.; Lycopodium japonicum L.*

Use: Medicinal

Category: Wind-damp–dispelling agents / Wind-cold-damp–dispelling agents

Properties: Bitter, acrid; warm.

Channel entry: Liver, spleen, and kidney channels.

Actions and indications: Dispels wind-damp, soothes the sinews, and quickens the network vessels: Wind-damp impediment pain, aching pain in the limbs and joints, inhibited bending and stretching; numbness and tingling of the skin; injury from knocks and falls.

Dosage and method: Oral: 10–15g, in decoctions or steeped in liquor.

Warnings: Shēn jīn cǎo is sometimes said to quicken the blood; use it with care in pregnancy.

Quality: yellowish-green plants with long stems are best.

Production area: Eastern, southern, and south-western China, and Manchuria.

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