Been reading a lot of posts about Poplar on this site and it seems to me that a lot of folks inter-change Poplar for Cottonwood. On most of the BTU charts there is a difference in many categories. For those who have used both....What is the difference? Are they cousins of the same species?(Silver Maple & Sugar Maple) Thoughts welcomed....

![[Hearth.com] Poplar & Cottonwood....What's the Real Difference? [Hearth.com] Poplar & Cottonwood....What's the Real Difference?](https://www.hearth.com/talk/data/attachments/170/170246-acfbeef2c7e67f63fc3881917559123e.jpg?hash=qEllh9787I)
![[Hearth.com] Poplar & Cottonwood....What's the Real Difference? [Hearth.com] Poplar & Cottonwood....What's the Real Difference?](https://www.hearth.com/talk/data/attachments/170/170247-3f5c2d4932213c7fd271a4fa9557567e.jpg?hash=ec0W31-eN5)