Pretty hard to tell using only this one leaf - were there a lot like this or just the one? What did the rest of the plant look like?

generally reminds me of the greater poplar family .... i dont know if aspen is included in such ... cottonwood-ish???

ken

I have seen a couple of pics of Robinia pseudoacacia - Black locust with obcordate leaves.

Alnus glutinosa (Black Alder) perhaps?

tj

My suspicion is that it’s an atypical leaf caused by damage to the bud. Were there other leaves around with the same margins, veins and texture? If so can you show one?

Yea, I'm starting to think it may have been a mutant leaf...like a 6-leaf clover. As these are some more pics of what she thinks were from the same tree...and none are obcordate.

Don't know what it is -- perhaps mulberry?

Redbud?

Looks a little 'Cotton woody' to me also.