Romaine or cos lettuce (Lactuca sativa L. var. longifolia) is a variety of lettuce which grows in a tall head of sturdy leaves with a firm rib down the center. Unlike most lettuces, it is tolerant of heat. The name cos lettuce derives from the Greek island of Kos, where it originated. The day of 22 Germinal in the French Republican Calendar is dedicated to this lettuce.
The thick ribs, especially on the older outer leaves, should have a milky flu...
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Romaine or cos lettuce (Lactuca sativa L. var. longifolia) is a variety of lettuce which grows in a tall head of sturdy leaves with a firm rib down the center. Unlike most lettuces, it is tolerant of heat. The name cos lettuce derives from the Greek island of Kos, where it originated. The day of 22 Germinal in the French Republican Calendar is dedicated to this lettuce.
The thick ribs, especially on the older outer leaves, should have a milky fluid which gives the romaine the typically fine-bitter herb taste. Romaine is the usual lettuce used in Caesar salad. Romaine lettuce is commonly used in Middle Eastern cuisine.
Romaine lettuce may be used in the Passover Seder as a type of bitter herb, to symbolise the bitterness inflicted by the Egyptians while the Israelites were slaves in Egypt.
As with other dark leafy greens, the antioxidants contained within romaine lettuce are believed to help prevent cancer. According to the 2011 edition of the Old Farmer's Almanac, the chlorophyll...
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