Are you sure they aren’t the same? Your end cut pic looks like that center could’ve been green when it was a fresh cut. That would indicate yellow poplar
Picture of the split. Splits just like the yellow poplar I cut up at the same time and location. Maybe another variety of poplar?
Looks like a maple split. The bark does look like basswood which splits VERY easily, but ive never seen it with the darker heartwood. When dry basswood splits will be very light on weight.
I initially thought I had a valuable 3 cords of hickory. But the bark didn't look quite right and the starburst heartwood was weird. And it split way too easily and became very light just after three days of drying. Everything burns when dry, but can't sell it if I don't know what to call it and charge for it.
Found a "Rainbow poplar" article with pictures. Seems minerals can change the color of the heartwood.
I am with Buzz Saw on this, the bark looks like some of the bass wood we have, and the comment about light weight. But the star coloration in the middle throws me off. The wood splits themselves do look like a maple
Was looking at the leaves around the base of the stumps; unfortunately, found six different types and gave up that idea. There are two standing trees close by of the same type, so will have some leaves to help identify in 4-6 weeks. Spring is coming fast in TN with all the sun and warmth the past month.
The TN master logger I frequently purchase logs from says this is elm. Watched a YouTube video of elm being split and am certain this is the stuff. 20 MBTUs, so not great firewood. Will make great kindling which I provide for free with each purchase. Will take years to give the amount I have away.