Bog rhubarb and Herbaceous plant

Bog rhubarb noun - Small Eurasian herb having broad leaves and lilac-pink rayless flowers; found in moist areas.

Herbaceous plant and bog rhubarb are semantically related. In some cases you can use "Herbaceous plant" instead a noun phrase "Bog rhubarb".

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

Bog rhubarb and herbaceous plant are semantically related. Sometimes you can replace phrase "Bog rhubarb" with "Herbaceous plant", this phrases are similar.