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Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Brassica
Species: Brassica rapa
Variety: B. rapa var. perviridis
Trinomial name
Brassica rapa var. perviridis
Mustard spinach, raw
Nutritional value per 100 g (3.5 oz)
Energy 92 kJ (22 kcal)
3.9 g
Dietary fiber 2.8 g
0.3 g
2.2 g
Vitamin A equiv.
495 μg
Thiamine (B1)
0.068 mg
Riboflavin (B2)
0.093 mg
Niacin (B3)
0.678 mg
Pantothenic acid (B5)
0.178 mg
Vitamin B6
0.153 mg
Folate (B9)
159 μg
Vitamin C
130 mg
210 mg
1.5 mg
11 mg
0.407 mg
28 mg
449 mg
21 mg
0.17 mg

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

Komatsuna (コマツナ(小松菜)) or Japanese mustard spinach (Brassica rapa var. perviridis) is a leaf vegetable. It is a variety of Brassica rapa, the plant species that yields the turnip, mizuna, napa cabbage, and rapini. It is grown commercially in Japan and Taiwan. The name 'komatsuna' is from the Japanese komatsuna (小松菜, コマツナ), 'greens of Komatsu', a reference to Komatsugawa village where it was heavily grown during the Edo period.[1] It is stir-fried, pickled, boiled, and added to soups or used fresh in salads. It is an excellent source of calcium.[2]

The leaves of komatsuna may be eaten at any stage of their growth. In a mature plant they are dark green with slender light green stalks, around 30 centimeters (12") long and 18 cm (7") wide. It is most often grown in the spring and autumn, as it cannot endure extreme heat or cold for more than a short time.

The plant is also used for fodder in some Asian countries.

See also[edit]


  1. ^ "小松菜 (こまつな) - 語源由来辞典". 語源由来辞典. Retrieved 20 May 2015. 
  2. ^ Queensland Government, Department of Primary Industries and Fisheries. "Komatsuna: Commercial Production.". Retrieved 27 June 2007.