Brassica rapa and Turnip plant

Brassica rapa noun - Widely cultivated plant having a large fleshy edible white or yellow root.

Turnip plant and Brassica rapa are semantically related. In some cases you can use "Turnip plant" instead a noun phrase "Brassica rapa".

Turnip plant noun - Any of several widely cultivated plants having edible roots.

Brassica rapa and turnip plant are semantically related. Sometimes you can replace phrase "Brassica rapa" with "Turnip plant", this phrases are similar.