Celtuce

Celtuce stems & heads

Celtuce (Lactuca sativa var. asparagina, augustana, or angustata), also called stem lettuce, celery lettuce, asparagus lettuce, or Chinese lettuce, IPA (UK,US) /ˈsɛlt.əs/, is a cultivar of lettuce grown primarily for its thick stem, used as a vegetable. It is especially popular in China, and is called wosun (Chinese: ; pinyin: wōsǔn) or woju (Chinese: ; pinyin: wōjù) (although the latter name may also be used to mean lettuce in general).

Celtuce (foreground) for sale in Lhasa
Celtuce, raw
Nutritional value per 100 g (3.5 oz)
Energy 75 kJ (18 kcal)
3.65 g
Dietary fiber 1.7 g
0.3 g
0.85 g
Vitamins
Vitamin A equiv.
(22%)

175 μg

Thiamine (B1)
(5%)

0.055 mg

Riboflavin (B2)
(6%)

0.07 mg

Niacin (B3)
(4%)

0.55 mg

(4%)

0.183 mg

Vitamin B6
(4%)

0.05 mg

Folate (B9)
(12%)

46 μg

Vitamin C
(23%)

19.5 mg

Minerals
Calcium
(4%)

39 mg

Iron
(4%)

0.55 mg

Magnesium
(8%)

28 mg

Manganese
(33%)

0.688 mg

Phosphorus
(6%)

39 mg

Potassium
(7%)

330 mg

Sodium
(1%)

11 mg

Zinc
(3%)

0.27 mg


Percentages are roughly approximated using US recommendations for adults.
Source: USDA Nutrient Database

The stem is usually harvested at a length of around 15–20 cm and a diameter of around 3–4 cm. It is crisp, moist, and mildly flavored, and typically prepared by slicing and then stir frying with more strongly flavored ingredients.

Lechuga china o wosun
Lechuga china o wosun (2)


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