Butterhead

Species name: Lactuca sativa var. capitata

Butterhead is a small-headed lettuce with soft leaves. Butterhead is one of two main varieties of lettuce, the second being crisphead. There are several varieties of butterhead, two of which are bibb and Boston lettuce. All lettuce varieties contain trace amounts of lactucarium, a known sedative, which has similar side effects to opium in higher amounts. Butterhead lettuce is known for its buttery texture and sweet flavor.