Herbaceous plant and Lettuce

Herbaceous plant noun - A plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests.

Lettuce and herbaceous plant are semantically related. In some cases you can replace term "Lettuce" with "Herbaceous plant", this terms are similar.

Lettuce noun - Any of various plants of the genus Lactuca.

Herbaceous plant and lettuce are semantically related. Sometimes you can use "Herbaceous plant" instead a noun "Lettuce".