Urui (Hosta) is an ingredient classified as a sansai in a list of regional crops published by the Tohoku Regional Agricultural Administration Office of the Ministry of Agriculture, Forestry and Fisheries.
The Yamagata Prefecture Wild Vegetable and Mushroom Promotion Association introduces urui as the young shoots of Oba-giboshi (Hosta), describing it as free of harsh flavor with a distinctive sliminess and crunch. Its culinary uses are wide-ranging, including ohitashi (boiled and seasoned greens), aemono (dressed dishes), soup ingredients, tempura, and simmered dishes. The taste and texture described here are the words of an ingredient introduction, not the result of measuring the presence or strength of bitterness with a panel and a scale.
Yamagata City's ohitashi recipe boils 280 g of urui in boiling water, transfers it to cold water, squeezes out the moisture, and cuts it into 4 cm lengths. It is finished with dashi-diluted soy sauce and chopped walnuts. Soft urui can be eaten down to the base, and the leaves and stems may be boiled separately. Not overboiling is also noted as a caution, but no boiling time is specified.
Checked for this overview: Supports the young shoots of Oba-giboshi (Hosta), the absence of harsh flavor, sliminess, crunch, culinary uses, and the caveat that this is not a sensory measurement.
山形市健康医療部健康増進課 / 2021 / government document / full text checked
Checked for this overview: Supports the 280 g, boiling water, cold water, draining, 4 cm cut, dashi-diluted soy sauce, walnuts, separate boiling of leaves and stems, and the caution against overboiling. / Supports the statement that soft urui can be eaten down to the base.
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Sensory (3)
urui (Hosta) is documented as having The Yamagata Prefecture Wild Vegetable and Mushroom Promotion Association states that urui is the young shoots of Oba-giboshi (Hosta), free of harsh flavor, with a distinctive sliminess and crunchcontextual
Scope: An ingredient introduction by the Yamagata Prefecture Wild Vegetable and Mushroom Promotion Association
Note: A sensory description in an ingredient introduction; no evaluators, scale, or replicates are shown. It is not a record that measured the presence of bitterness.
The page describes urui as the young shoots of Oba-giboshi (Hosta), free of harsh flavor with a distinctive sliminess and crunch. It lists ohitashi, aemono, soup ingredients, tempura, and simmered dishes as uses.
Limitations: An ingredient introduction, not a sensory test that measured sensation with a panel size, scale, and replicates. It does not indicate the presence of bitterness.
urui (Hosta) is documented as having Because bitterness is strong even in young leaves, the leaf part is torn off by hand and only the stem part is harvestedcontextual
Scope: The harvesting-method section of installment 12 of the wild-vegetable-foraging series published by the Akita Forest-Building Activity Support Center
Note: This is a description aimed at foragers, not a sensory test with evaluators, a scale, and replicates. It concerns a difference in the strength of bitterness between leaf and stem, and does not go so far as to state that the stem itself has no bitterness.
The page states: "The best time is when the leaf has not yet opened and is still rolled up; the stem part is cut off with a knife. Because bitterness is strong even in young leaves, the leaf part is torn off by hand and only the stem part is harvested."
Limitations: This is a general caution note aimed at foragers, not a record that measured the strength of bitterness by number of people or by a scale. Cultivar, growing region, and season are not shown.
urui (Hosta) is documented as having Urui, the young shoots of Oba-giboshi (Hosta), is a wild vegetable that is easy to eat because, although the leaves have a slight bitterness, harshness (aku) is lowcontextual
Scope: An ingredient introduction article by the Toyosu Market Association, a general incorporated association that operates Toyosu Market
Note: This is a description from a market-facing ingredient introduction; no sensory evaluators, scale, or replicates are shown. The low harshness (aku) and the slight bitterness are kept as separate statements, as in the original.
The page states: "[Urui] The young shoots of Oba-giboshi (Hosta), with a crisp texture and a distinctive sliminess. The leaves have a slight bitterness, but it is a wild vegetable that is easy to eat because harshness (aku) is low," and includes a photo of the traditional Yamagata Prefecture vegetable 「小笹（おざさ）うるい」 (in translation: "Ozasa urui").
Limitations: This is a market-facing ingredient introduction, not a record that measured the strength of bitterness by number of people or by a scale.
Source: 【ウルイ】独特のぬめりがある山菜 (市場協会豊洲（一般社団法人豊洲市場協会）, 2025) · full text checked
Show dataingredient-urui —is_documented_as_having→ (the claim sentence above)
urui (Hosta) is prepared by: Yamagata City's ohitashi recipe boils 280 g of urui in boiling water, transfers it to cold water, squeezes out the moisture, cuts it into 4 cm lengths, and tops it with dashi-diluted soy sauce and chopped walnutscontextual
Scope: 1 urui ohitashi recipe posted on Yamagata City's official page
Note: Heating time and the amount of water are not shown. The page notes not to overboil and that the leaves and stems may be boiled separately.
280 g of urui is boiled in boiling water, transferred to cold water, squeezed of moisture, and cut into 4 cm lengths. Dashi stock and soy sauce are combined and poured on together with 10 g of chopped walnuts. It notes not to overboil, and that the leaves and stems may be boiled separately.
Limitations: Heating time, the amount of water, and the sample's cultivar and growing conditions are not shown. It is not a before-and-after comparison of texture through processing.
Source: うるいのお浸し (山形市健康医療部健康増進課, 2021) · full text checked
Show dataingredient-urui —is_prepared_by→ (the claim sentence above)
urui (Hosta) is documented as having Yamagata City's page states that soft urui can be eaten down to the base and can also be used in stir-fries and dressed dishescontextual
Scope: A brief tip on Yamagata City's official page
Note: The criteria for judging softness, cultivar, and growing conditions are not shown.
The page states that soft urui can be eaten down to the base, has a flavor free of harshness, and can also be applied to stir-fries and dressed dishes.
Limitations: It does not show the criteria for softness, cultivar, harvest timing, or growing conditions.
Source: うるいのお浸し (山形市健康医療部健康増進課, 2021) · full text checked
Show dataingredient-urui —is_documented_as_having→ (the claim sentence above)
urui (Hosta) is listed as: 「山菜」 (in translation: "sansai") in the list of regional crops published by the Tohoku Regional Agricultural Administration Office of the Ministry of Agriculture, Forestry and Fisheries.contextual
Scope: Appendix 4 of the Misato Town Regional Agricultural Revitalization Council.
Note: Same as above.
urui is listed in the sansai section of the regional-crop list.