Western yellow pine and Yellow pine

Western yellow pine noun - Common and widely distributed tall timber pine of western North America having dark green needles in bunches of 2 to 5 and thick bark with dark brown plates when mature.

Yellow pine and western yellow pine are semantically related. In some cases you can use "Yellow pine" instead a noun phrase "Western yellow pine".

Yellow pine noun - Any of various pines having yellow wood.

Western yellow pine and yellow pine are semantically related. Sometimes you can replace phrase "Western yellow pine" with "Yellow pine", this phrases are similar.