What makes lettuce a dicot?

Answer 1

Lettuce is classified as a dicotyledon (or dicot) because it possesses two embryonic leaves, or cotyledons, in its seeds. Additionally, its floral structure typically features parts in multiples of four or five, and its leaves generally have a net-like vein pattern. The vascular tissue in dicots is arranged in a ring, which is another distinguishing characteristic. These features align with the defining traits of dicots within the angiosperms.