From Wikipedia, the free encyclopedia
Jump to: navigation, search
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
Vitamin A equiv.
175 μg
Thiamine (B1)
0.055 mg
Riboflavin (B2)
0.07 mg
Niacin (B3)
0.55 mg
0.183 mg
Vitamin B6
0.05 mg
Folate (B9)
46 μg
Vitamin C
19.5 mg
Trace minerals
39 mg
0.55 mg
28 mg
0.688 mg
39 mg
330 mg
11 mg
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)