Bai Ji (Bletilla Rhizome)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Bai Ji, and how is it prepared?

  Roughly 3–10 g is the standard decoction range. Preparation is distinctive: because Bai Ji is rich in mucilage/polysaccharide, its powdered form is usually mixed directly into the strained decoction rather than decocted along with the other herbs, and it is used the same way in some topical preparations.

  • Topical use — the powder (often mixed into a paste) is applied directly to traumatic wounds, sores, or cracked skin to help stop bleeding and support healing.

  Source: Sacred Lotus sources & references; standard materia medica dosage and preparation notes (Bensky; Chen & Chen).

Chinese Herb Combinations:

Chinese Herb Contraindications & Cautions

• Are there cautions for Bai Ji, including the classical aconite incompatibility?

  Bai Ji should not be combined with Wu Tou (aconite/Aconitum products) — this is one of the classical “eighteen incompatibilities” (shi ba fan) of Chinese materia medica, the traditional list of herb pairs held to conflict or potentiate harm when combined; Bai Ji is specifically named alongside Bei Mu, Gua Lou, Ban Xia, and Bai Lian as incompatible with Wu Tou.

  • External disease / early-stage Lung abscess — not used when hemoptysis is due to an active external (exterior) disease, or in the early stage of Lung abscess.
  • Excess fire and toxins — not used when bleeding is caused by excess fire and toxic heat rather than the deficiency/chronic patterns it is suited to.

  Source: Sacred Lotus sources & references; classical eighteen-incompatibilities (shi ba fan) tradition; standard materia medica cautions (Bensky; Chen & Chen).

Chinese Herb Toxicity & Overdose

• Low. Bai Ji is a mucilaginous rhizome with a long history of both internal and topical use in Chinese medicine, and no significant toxicity is reported in the traditional literature at customary doses. Its mucilage/polysaccharide content is the basis of most modern research interest (wound dressings, hemostatic materials — see Research), which has not raised toxicity concerns in the animal and cell studies reviewed.

  Source: materia medica consensus; modern polysaccharide research (below). Reference note, not a safety guarantee.

Herb-Drug Interactions

• No well-established clinical herb–drug interactions are documented for Bai Ji. Given its traditional hemostatic (stop-bleeding) action, practitioner awareness is reasonable for patients on anticoagulant or antiplatelet therapy — this is a precautionary, common-sense consideration based on the herb's traditional action, not a demonstrated clinical interaction. (Flagged for practitioner confirmation.)

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Bai Ji (Bletilla striata)?

  Yes — modern research strongly supports Bai Ji's traditional hemostatic and wound-healing reputation, centered on its mucilaginous Bletilla striata polysaccharide (BSP), alongside separate research documenting real conservation pressure on wild populations.

  • Wound-healing/hemostatic biomaterials (animal) — a 2023 study (International Journal of Biological Macromolecules) developed a composite sponge combining Bletilla striata polysaccharide with copper and peony-leaf extract, reporting significantly enhanced blood-clotting in a rat liver-trauma model and accelerated skin-wound healing via increased collagen deposition, angiogenesis, and reduced inflammation, plus antibacterial activity against Staphylococcus aureus and E. coli. Animal/laboratory research.
  • Wound-healing hydrogel (animal/cell) — a 2019 study in the same journal combined Bletilla striata polysaccharide with carboxymethyl chitosan and Carbomer 940 into a hydrogel, reporting wound-healing rates of roughly 72% and 84% at 7 and 14 days respectively in an animal wound model, with good cell viability and blood compatibility in vitro.
  • Wild-resource conservation — a genetic-diversity study of twelve wild Bletilla striata populations (SRAP markers) reported that “the quality and quantity of wild B. striata plants have declined sharply due to habitat deterioration and human over-exploitation,” calling it urgent to evaluate and protect the species' wild resources and proposing conservation strategies based on population genetic structure.

  The wound-healing/hemostatic research base is preclinical (animal and in-vitro) rather than human clinical trials, but is directly consistent with, and mechanistically supportive of, the traditional use.

  Sources: PMID 37068538 (International Journal of Biological Macromolecules, 2023, Bletilla striata polysaccharide/copper/peony-leaf sponge, animal study); PMID 30940589 (International Journal of Biological Macromolecules, 2019, Bletilla striata polysaccharide hydrogel, animal/in-vitro); PMID 27405177 (Yao Xue Xue Bao, 2016, genetic diversity and wild-population conservation). Research context, not a therapeutic claim.

Chinese Herb Notes

• Is Bai Ji used mainly as a single herb or in formulas, and where does it come from?

  Bai Ji is used both as a topical single herb and within formulas, and it is worth knowing that it comes from a slow-growing terrestrial orchid whose wild populations are under real collection pressure. Traditionally, its powder is applied directly for topical bleeding and wound care — a use pattern that predates and exists alongside its role in internal formulas for Lung/Stomach bleeding.

  • Botanical source — Bai Ji is the dried tuber-like rhizome of Bletilla striata, a terrestrial orchid (Orchidaceae) native to China, Japan, and neighboring regions.
  • Sourcing note — orchids are slow to mature and propagate, and modern research on wild Bletilla striata documents sharp declines in wild population quality and quantity from habitat loss and over-collection, prompting active conservation and cultivation research (see Research). This is a sourcing/sustainability fact for reference, not a usage instruction.

  Source: Sacred Lotus sources & references; standard materia medica preparation notes (Bensky; Chen & Chen); wild-resource research (below).

This herb is incompatible with:

• Fu Zi (Radix Lateralis Praeparatus Aconiti Carmichaeli)
• Cao Wu (Radix Aconiti Kusnezoffii Preparata)
• Chuan Wu (Radix Aconiti Preparata)