The Beatles sang about "Rocky Raccoon" in their 1968 song of the same name. The song mentions a "magnolia tree" and "mahogany desk" in the lyrics, indicating that those are the types of wood referenced in the song.
The Beatles sang about Norwegian Wood. It is a type of wood that was used to furnish and decorate homes in the 1960s. The song "Norwegian Wood (This Bird Has Flown)" was written by John Lennon and Paul McCartney and appeared on their 1965 album "Rubber Soul".