Cos
Cos
Cos (pronounced: /kɒs/), also known as Romaine lettuce or Roman lettuce, is a variety of lettuce (Lactuca sativa L. var. longifolia) that grows in a tall head of sturdy dark green leaves with firm ribs down their centers. Unlike most lettuces, it is tolerant of heat.
Etymology
The term "Cos" is derived from the Greek island of Cos, where the variety is believed to have originated. The term "Romaine" comes from the lettuce's supposed popularity in Rome.
Related Terms
- Lettuce: A plant of the daisy family, typically having a short stem and a rosette of leaves that is used in salads.
- Leaf vegetable: A vegetable that is from the leaves of a plant.
- Crisphead lettuce: A type of lettuce that includes iceberg lettuce and is characterized by a compact head of crisp, light-green leaves.
- Butterhead lettuce: A type of lettuce that includes Boston and Bibb lettuces and is characterized by loose heads of tender, smooth leaves.
- Looseleaf lettuce: A type of lettuce that does not form a compact head and includes varieties such as oak leaf and lollo rosso.
See Also
External links
- Medical encyclopedia article on Cos
- Wikipedia's article - Cos
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