Black lovage and Herbaceous plant

Black lovage noun - European herb somewhat resembling celery widely naturalized in Britain coastal regions and often cultivated as a potherb.

Herbaceous plant and black lovage are semantically related. In some cases you can use "Herbaceous plant" instead a noun phrase "Black lovage".

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

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