Romaine lettuce grows in elongated heads, while butterhead lettuce appears in loose round rosettes. Loose-leaf lettuce varieties, like red and green oak leaf, grow in open layers with very loosely ...

The romaine lettuce had to be left whole, except the floppy ends, which would need to be chopped off. The fact that the lettuce had to be romaine was, I figured, a given. But that was then.

Romaine lettuce forms a loose head of sturdy, elongated, and bright green leaves. Some upright varieties of Romaine lettuce may reach up to 10 inches in height.