Food · Fermented foods

Tsuwabuki (Leopard Plant)

つわぶき (Tsuwabuki)

Also known as: Tsuwabuki, Leopard plant, Farfugium japonicum, 石蕗

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At a glance

CategoryFood
Japanese labeling nameつわぶき
Common Japanese notationsつわぶき, 石蕗, ツワブキ
OriginFarfugium japonicum, coastal Asteraceae plant native to Japanese coastal regions; the young petioles (leaf stalks) are eaten after processing to remove bitterness
Typical functionsCoastal regional cuisine specialty, Kyushu and Pacific coastal traditional ingredient
Regulatory status in JapanStandard agricultural product labeling. Note: Tsuwabuki contains pyrrolizidine alkaloids requiring proper processing (long water-soaking) before consumption. Not a designated allergen.

Tsuwabuki (つわぶき / 石蕗) is Farfugium japonicum, a coastal Asteraceae plant whose young leaf stalks (petioles) are traditionally eaten in Kyushu and Pacific coastal regions after extensive processing to remove bitter and toxic alkaloids.

Classification

Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.

Functions

Regulatory tags

Used in (typical product categories)

Finished-product categories that commonly include this ingredient in Japanese-market formulations.

  • Fresh and pickled tsuwabuki (regional)

What it is

Tsuwabuki is Farfugium japonicum, with thick fleshy petioles. Contains pyrrolizidine alkaloids requiring extensive water-soaking processing before consumption.

Regional production: Kyushu and Pacific coastal areas.

Typical uses in Japanese products

Kyushu regional simmered preparations (after processing).

Pickled tsuwabuki regional retail.

For OEM: regional Kyushu specialty retail.

Regulatory classification in Japan

Standard food labeling. Critical: requires proper water-soaking processing before consumption. Not a designated allergen.

Regulatory classification in other markets

EUNiche specialty / regulatory considerations for pyrrolizidine alkaloids.
USANiche specialty / not commonly traded.
ChinaNiche specialty positioning.
KoreaNiche specialty positioning.

Example products

Example finished products will be added after verification of Kyushu regional origin.

All brand names and product names referenced anywhere on this site are the property of their respective owners. Example entries are provided for informational purposes only and do not imply endorsement.

Related ingredients

References

  1. MEXT Standard Tables of Food Composition — つわぶき

Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.

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