Tonewood!

[Lightyear]

Back when I was young, and very broke, I serviced blue line (blueprint) machines.  These beasties weighed a ton or so came on some stout pallets.  I remember some were made of red oak, soft maple and many were pecan.  They were bitch to knock apart as I surmise that they were assembled from green wood that dried around the nails  I did make some killer porch swings though.

[dadagoboi]

Swamp ash was Fender's cheap replacement for eastern pine.  It's the same species as northern ash but due to location grows faster.  That makes it less dense.  Now expensive because as the south has been cleared for housing it's been harvested.  Also used to be called 'punky ash'.

In the early 90s when I bought rough ash lumber a few hundred board feet at a time to use in furniture approximately 5% could have been called swamp ash.  I complained to my supplier and got a discount.