Food · Fermented foods

Hitoegusa (Single-Layer Green Laver)

ひとえぐさ (Hitoegusa)

Also known as: Hitoegusa, Monostroma nitidum, ひとえぐさ, 一重草, Hitoegusa-aonori

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At a glance

CategoryFood
Japanese labeling nameひとえぐさ
Common Japanese notationsひとえぐさ, 一重草, ヒトエグサ
OriginMonostroma nitidum; principal modern production region Mie Ise-shima; one of the species marketed as 'aonori' but distinct quality from sujiao-aonori
Typical functionsPremium aosa-no-miso-shiru ingredient, Tsukudani-nori (boiled-down nori paste — a major retail category, with major brand 'Edomae Tsukudani'), Premium aonori positioning
Regulatory status in JapanStandard agricultural product labeling. Mie Ise-shima origin. Not a designated allergen.

Hitoegusa (ひとえぐさ / 一重草) — Monostroma nitidum — is a premium green laver species, principally produced in Mie Ise-shima. The defining application is tsukudani-nori (boiled-down nori paste — a major Japanese retail category, with established brands like Edomae Tsukudani).

Classification

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

Used in (typical product categories)

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

  • Dried hitoegusa flakes retail
  • Tsukudani-nori retail (volume retail category)

What it is

Monostroma nitidum green laver, distinct from sujiao-aonori (Ulva prolifera).

Production: Mie Ise-shima.

Typical uses in Japanese products

Tsukudani-nori paste — defining retail application.

Aosa-no-miso-shiru ingredient (premium grade).

Aonori-flavored snacks (premium positioning).

For OEM: tsukudani-nori paste production OEM, dried flake retail.

Regulatory classification in Japan

Standard food labeling. Mie Ise-shima origin. Not a designated allergen.

Regulatory classification in other markets

EUNiche specialty in Asian cuisine.
USANiche specialty in Japanese-cuisine channels.
ChinaNiche specialty positioning.
KoreaNiche specialty positioning.

Example products

Example finished products will be added after verification.

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Related ingredients

References

  1. MEXT Standard Tables of Food Composition — ひとえぐさ 各形態

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

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