botanical record · discovered
Chaff Flower
Achyranthes bidentata
Chaff Flower · Kiinantähkähäntä · Ngưu tất · Ox Knee · Ruderal chaff flower · niu xi · oxknä · pig's knee · イノコヅチ · 淮牛膝 · 牛膝 · 牛膝茎叶 · 牛膝(怀牛膝) · 쇠무릎 · 털쇠무릎
At a glance
Origin / distribution: China, Japan*, Java
Cultural traditions: not documented
Recorded uses: Ache(Head), Ague, Amenorrhea, Anodyne
Science studied: CALCIUM, COPPER, ECDYSTERONE, IRON
Research volume: 0 indexed records · volume only · methodology ↗
Legal status: Varies by jurisdiction; not assessed in this record.
Names and identity
Family: Amaranthaceae
Scientific name: Achyranthes bidentata
Common names: Chaff Flower, Kiinantähkähäntä, Ngưu tất, Ox Knee, Ruderal chaff flower, niu xi, oxknä, pig's knee, イノコヅチ, 淮牛膝, 牛膝, 牛膝茎叶, 牛膝(怀牛膝), 쇠무릎, 털쇠무릎
POWO: 58678-1 · WCVP June 2026 / POWO backbone
History
The source record documents this plant in China, Japan*, Java.
It records these historical or traditional applications:
- Ache(Head)
- Ague
- Amenorrhea
- Anodyne
- Antiperspirant
- Aphthae
- Diuretic
- Emmenagogue
show 21 more documented entries
- Fever
- Hemolytic
- Impotency
- Labor
- Lumbago
- Malaria
- Medicine
- Pain
- Puerperium
- Rheumatism
- Skin
- Thirst
- Tonic
- Ache(Tooth)
- Tumor
- Urogenital
- Vermifuge
- Anxiety
- Coagulant
- Epistaxis
- Hypertension
This summary is limited to the cited source record.
Origins and distribution
- China
- Japan*
- Java
Documented cultural uses
- Ache(Head)
- Ague
- Amenorrhea
- Anodyne
- Antiperspirant
- Aphthae
- Diuretic
- Emmenagogue
- Fever
- Hemolytic
- Impotency
- Labor
show 17 more documented entries
- Lumbago
- Malaria
- Medicine
- Pain
- Puerperium
- Rheumatism
- Skin
- Thirst
- Tonic
- Ache(Tooth)
- Tumor
- Urogenital
- Vermifuge
- Anxiety
- Coagulant
- Epistaxis
- Hypertension
Cultural record detail
These entries are transcribed from the cited ethnobotanical source; they do not represent current advice or a claim of efficacy.
- Ache(Head) · China · "
- Ague · China · "
- Amenorrhea · China · "
- Anodyne · China · "
- Anodyne · Japan* · "
- Antiperspirant · China · "
- Aphthae · Java · "
- Diuretic · Japan* · "
- Diuretic · China · "
- Emmenagogue · China · "
- Fever · China · "
- Hemolytic · China · "
- Impotency · China · "
- Labor · China · "
- Lumbago · China · "
- Malaria · China · "
- Medicine · China · "
- Pain · China · "
- Puerperium · China · "
- Rheumatism · China · "
- Skin · China · "
- Thirst · China · "
- Tonic · China · "
- Ache(Tooth) · China · "
7 additional documented entries remain in the source record.
Contemporary uses
Contemporary practice is not documented separately in this record.
Scientific research
Indexed records indicate research activity; they do not establish efficacy or safety.
Indexed research records
- Achyranthes bidentata–functionalized bone organoids enhance bone defect repair · 2026 source ↗
- Integrative transcriptomics and reverse network pharmacology prioritize DPP4 and Achyranthes bidentata in Barrett's esophagus. · 2026 source ↗
- Extraction, structure and bioactivities of polysaccharide from Achyranthes bidentata: A review. · 2026 source ↗
Scientific compounds
Chemical presence is not evidence of clinical efficacy.
- CALCIUM
- COPPER
- ECDYSTERONE
- IRON
- MAGNESIUM
- PONASTEROSIDE-A
- POTASSIUM
- POTASSIUM-OXALATE
- BETA-SITOSTEROL
- BETA-SITOSTEROL-GLYCOSIDE
- STIGMASTEROL
- BETAINE
- MANGANESE
- POTASSIUM-SUCCINATE
- STIGMASTEROL-GLYCOSIDE
- ARSENIC
show 5 more documented entries
- INOKOSTERONE
- OLEANOLIC-ACID
- SODIUM
- ZINC
- GABA
Legality
No exact international trade listing was returned by the CITES checklist for this accepted name. Country-specific law is not assessed here.
Consult the CITES species checklist for current international and national requirements.
Reference images

Sources
Plants of the World Online (POWO) · Kew data terms; cite POWO/WCVP
World Checklist of Vascular Plants (WCVP) · CC BY 3.0
show claim source mapping
- identity · DH-SRC-0030
- documented_uses · DH-SRC-0030
- compounds · DH-SRC-0030
- taxonomy · DH-SRC-GBIF · source ↗
- common_names · DH-SRC-GBIF · source ↗
- countries · DH-SRC-GBIF · source ↗
- wfo_taxonomy · DH-SRC-0003 · source ↗
- cultural_records · DH-SRC-0030 · source ↗
- powo_taxonomy · DH-SRC-0001 · source ↗
- wcvp_taxonomy · DH-SRC-0002 · source ↗
CC0 · Dr. Duke raw CSV archive
Contributions and revisions
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