Food · Fermented foods

Wa-shu Nabana (Japanese Rapeseed Flower)

和種なばな (Wa-shu Nabana)

Also known as: Wa-shu nabana, Japanese rapeseed flower, Brassica rapa flower buds, 和種菜花, Nanohana

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At a glance

CategoryFood
Japanese labeling name和種なばな
Common Japanese notations和種なばな, 菜花, なのはな
OriginBrassica rapa flower buds and stalks (Japanese cultivar); spring seasonal vegetable; principal modern production regions Chiba, Tokushima
Typical functionsSpring seasonal foodservice signature, Karashi-ae (mustard-dressed) preparation
Regulatory status in JapanStandard agricultural product labeling. Spring seasonal positioning. Not a designated allergen.

Wa-shu nabana (和種なばな) is the Japanese cultivar of Brassica rapa flower buds and stalks, a defining spring seasonal vegetable. Distinctive aromatic bitterness suits karashi-ae (mustard-dressed) preparations and spring kaiseki.

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Classification

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Common OEM product categories

Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.

  • Fresh wa-shu nabana retail (spring seasonal, January-April)

Ingredient profile

Brassica rapa flower buds and stalks, Japanese cultivar.

OEM applications

Karashi-ae (mustard-dressed).

Spring kaiseki.

For OEM: spring seasonal retail.

Regulatory classification in Japan

Standard food labeling. Not a designated allergen.

Regulatory classification in other markets

EUNiche specialty positioning.
USANiche specialty positioning.
ChinaNiche specialty positioning.
KoreaNiche specialty positioning.

Market reference formulations

Example finished products will be added after verification.

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Alternative ingredients

Related ingredients commonly evaluated as substitutes.

Quick answers

What is Wa-shu Nabana (Japanese Rapeseed Flower)?
Wa-shu nabana (和種なばな) is the Japanese cultivar of Brassica rapa flower buds and stalks, a defining spring seasonal vegetable. Distinctive aromatic bitterness suits karashi-ae (mustard-dressed) preparations and spring kaiseki.
What is the regulatory status of Wa-shu Nabana (Japanese Rapeseed Flower) in Japan?
Standard agricultural product labeling. Spring seasonal positioning. Not a designated allergen.
What products typically use Wa-shu Nabana (Japanese Rapeseed Flower)?
Fresh wa-shu nabana retail (spring seasonal, January-April)
Where does Wa-shu Nabana (Japanese Rapeseed Flower) come from?
Brassica rapa flower buds and stalks (Japanese cultivar); spring seasonal vegetable; principal modern production regions Chiba, Tokushima
What is the INCI / JSCI labeling name for Wa-shu Nabana (Japanese Rapeseed Flower)?
JSCI: 和種なばな

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References

  1. 文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) Standard Tables of Food Composition — 和種なばな

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

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