Herbaceous plant and Indian 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.

Indian lettuce and herbaceous plant are semantically related. In some cases you can replace phrase "Indian lettuce" with "Herbaceous plant", this phrases are similar.

Indian lettuce noun - A plant of the genus Montia having edible pleasant-tasting leaves.

Herbaceous plant and Indian lettuce are semantically related. You can use "Herbaceous plant" instead a noun phrase "Indian lettuce".