Pinus thunbergii and Pine tree

Pinus thunbergii noun - Large Japanese ornamental having long needles in bunches of 2; widely planted in United States because of its resistance to salt and smog.

Pine tree and Pinus thunbergii are semantically related. In some cases you can use "Pine tree" instead a noun phrase "Pinus thunbergii".

Pine tree noun - A coniferous tree.

Pinus thunbergii and pine tree are semantically related. Sometimes you can replace phrase "Pinus thunbergii" with "Pine tree", this phrases are similar.