イタドリ
itadori
Japanese knotweed
Japanese knotweed provides tender young spring shoots with a crisp, tart flavour, commonly peeled and cooked, pickled or preserved.
About Japanese knotweed
Japanese knotweed is a perennial plant whose young spring shoots are used as a seasonal vegetable in some cuisines. Only tender shoots are typically eaten; mature stems become tough and fibrous. The plant is also known as itadori in Japan, where its sour shoots have traditional food uses.
Young shoots are green to reddish and have a crisp, juicy texture with a tart, rhubarb-like flavour. They may be peeled and cooked, pickled, or otherwise preserved. Preparation and maturity matter: older stems are less suitable for eating, and preserved forms differ from fresh shoots.
- Ingredient type
- whole food
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Where will you meet it?
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Find local names and written forms to help recognise this ingredient.
See local namesWhere japanese knotweed appears
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Name examples awaiting language review. Confirm the specific food or product.
Local names for japanese knotweed
Names and romanised forms to recognise on menus and labels.
虎杖
itadori
Available names only. Languages may be spoken in other countries; a name alone does not identify every ingredient in a dish.
Name not available yet.
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Japanese knotweed nutrition & diet
Japanese knotweed nutritional value
Representative benchmark: Vegetables, not further specified
Representative nutrition benchmarkOfficial table values for a comparable food category, not a laboratory measurement of this exact ingredient.
Per 100 g of 100 g edible portion in the named official reference form.
- Calories
- 37kcal
- Protein
- 2.3g
- Carbs
- 4.1g
- Fat
- 0.4g
Representative benchmark from a comparable official food-composition category; it is not a laboratory measurement of this exact ingredient. The displayed reference form must be considered, and species, cultivar, recipe, brand, processing and preparation can change values.
Young fresh shoots, peeled cooked shoots, and pickled or preserved forms are different comparison bases. Peeling, cooking, and added brine or seasoning affect the measured product.
Dietary compatibility
- VeganNot established
- VegetarianNot established
- PescatarianNot established
- KetoNot established
- PaleoNot established
- Low-carbNot established
- HalalNot established
- KosherNot established
What these diet assessments mean
- Vegan · Not established
- The available profile does not establish the full composition or processing for this dietary pattern.
- Vegetarian · Not established
- The available profile does not establish the full composition or processing for this dietary pattern.
- Pescatarian · Not established
- The available profile does not establish the full composition or processing for this dietary pattern.
- Keto · Not established
- A defined serving and sourced carbohydrate data are needed before assessing this dietary pattern.
- Paleo · Not established
- The ingredient form and processing have not been assessed against this dietary pattern.
- Low-carb · Not established
- A defined serving and sourced carbohydrate data are needed before assessing this dietary pattern.
- Halal · Not established
- Sourcing, processing and any applicable certification have not been verified. A food name alone does not establish halal status.
- Kosher · Not established
- Sourcing, processing and any applicable certification have not been verified. A food name alone does not establish kosher status.
For the plain ingredient · Awaiting review. Diet compatibility is not allergy suitability or halal/kosher certification. Keto and low-carb depend on the portion.
AI-generated illustration for visual context. It does not identify a particular product or establish allergen content.
Sources & review
Nutrition reference: Pacific Nutrient Database 2020 — 01.1.7.4.9_99 ↗. Values are scaled from 100 g of the recorded edible form. Individual portions have no assumed fixed weight.
Expanded overview, name examples and nutrition notes are database drafts awaiting editorial review. Numeric nutrition values, where shown, have their own source and food-form reference.
The ingredient description and dish connections come from the draft catalogue and may change after review.
Last recorded verification: .