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HerbSpirodelae Herba

浮萍

Fú Píng

Duckweed

The dried whole plant of Spirodela polyrrhiza (Lemnaceae). Cold and pungent, entering the Lung channel. Light and floating in nature, it excels at disseminating wind-heat, venting rashes, and stopping itch; also promotes urination to reduce edema. Effective for wind-heat exterior patterns, incomplete measles eruption, and urticaria.

Actions · 功效

宣散风热Disseminate and disperse wind-heat
透疹止痒Vent rashes and stop itching
利水消肿Promote urination and reduce edema

Indications · 主治

风热表证，麻疹不透Wind-heat exterior pattern with incomplete measles eruption
风疹瘙痒Wind rash with itching (urticaria)
水肿，小便不利Edema with inhibited urination

Dosage · 用量

Per day · decoction · non-pregnant adult

3–10 g

Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.

Draft· 2026-04-16

Footnotes · 引用

[1]Shennong Bencao Jing (Divine Husbandman's Materia Medica)
[2]Mingyi Bielu (Supplementary Records of Famous Physicians)

Permalink · CC BY-SA 4.0

Cite this entry

@misc{bencaodian-fu-ping,
  author       = {{Bencaodian Editorial}},
  title        = {Fú Píng 浮萍 (Duckweed) — Spirodelae Herba},
  year         = {2026},
  howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
  url          = {https://bencaodian.org/en/herbs/fu-ping},
  urldate      = {2026-04-16},
  note         = {CC BY-SA 4.0}
}

Permalink is fixed

@misc{bencaodian-fu-ping, author = {{Bencaodian Editorial}}, title = {Fú Píng 浮萍 (Duckweed) — Spirodelae Herba}, year = {2026}, howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine}, url = {https://bencaodian.org/en/herbs/fu-ping}, urldate = {2026-04-16}, note = {CC BY-SA 4.0} }