Gennoshiouko

At a glance

Origin / distribution: Japan, BR, CA, JP, SI, US

Cultural traditions: not documented

Recorded uses: Diarrhea, Intestine

Science studied: BREVIFOLIN, (+)-CATECHIN, COPPER, ELAEOCARPUSIN

Research volume: 0 indexed records · volume only · methodology ↗

Legal status: Varies by jurisdiction; not assessed in this record.

Names and identity

Family: Geraniaceae

Scientific name: Geranium thunbergii

Common names: Gennoshiouko, Oriental Geranium, Thunberg's geranium, Thunberg’s geranium, thunbergova krvomočnica, 中日老鹳草, 中日老鹳草*(东亚老鹳草）, 老鹳草, géranium de Thunberg, ゲンノショウコ, dewdrop crane's-bill

POWO: 373741-1 · WCVP June 2026 / POWO backbone

History

The source record documents this plant in Japan, BR, CA, JP, SI, US.

It records these historical or traditional applications:

• Diarrhea
• Intestine

This summary is limited to the cited source record.

Origins and distribution

• Japan
• BR
• CA
• JP
• SI
• US

Documented cultural uses

• Diarrhea
• Intestine

Cultural record detail

These entries are transcribed from the cited ethnobotanical source; they do not represent current advice or a claim of efficacy.

• Diarrhea · Japan · "
• Intestine · Japan · "

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

• Ellagic Acid from <i>Geranium thunbergii</i> and Antimalarial Activity of Korean Medicinal Plants. · 2025 source ↗
• Chemical analysis of amyloid β aggregation inhibitors derived from Geranium thunbergii. · 2022 source ↗
• Development and characterization of nuclear microsatellite markers to reveal the neutral demographic background of flower color polymorphism in Geranium thunbergii (Geraniaceae). · 2021 source ↗

Scientific compounds

Chemical presence is not evidence of clinical efficacy.

• BREVIFOLIN
• (+)-CATECHIN
• COPPER
• ELAEOCARPUSIN
• ELLAGIC-ACID
• ETHER-CORILAGIN
• GALLIC-ACID
• IRON
• KAEMPFERITRIN
• MAGNESIUM
• MANGANESE
• NONAMETHYL-CORILAGIN
• PENTAGALLOYL-GLUCOSE
• PHYLLANTHUSIN-D
• PROTOCATECHUIC-ACID
• PYROGALLOL

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

CC0 · Dr. Duke raw CSV archive

Contributions and revisions

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