HISB94H3 Lecture Notes - Lecture 21: Selective Breeding, Species Plantarum, Chicory
Document Summary
Lettuce is an annual plant of the daisy family, asteraceae. It is most often grown as a leaf vegetable, but sometimes for its stem and seeds. Lettuce is most often used for salads, although it is also seen in other kinds of food, such as soups, sandwiches and wraps; it can also be grilled. One variety, the """", or asparagus lettuce, is grown for its stems, which are eaten either raw or cooked. In addition to its main use as a leafy green, it has also gathered religious and medicinal significance over centuries of human consumption. Europe and north america originally dominated the market for lettuce, but by the late. 20th century the consumption of lettuce had spread throughout the world. World production of lettuce and chicory for calendar year 2017 was 27 million tonnes, 56% of which came from china. The species was first described in 1753 by carl linnaeus in the second volume of his species plantarum.
