Help identifying a rootstock

[Telemark]

Any ideas? Hawthorne? Whitebeam?
It's a rootstock for a Japanese quince.

 

[Lucky_P]

Looks like hawthorn to me.
My Q. is...Why graft Jap. quince?
Chaenomeles cuttings root pretty easily

 

[Telemark]

It came from the supplier that way. They graft Japanese Quince on a 4 foot trunk of some other species to make it a tree. The graft broke and I re-grafted it to see if I could. It makes a nice ornamental tree with big red flowers and then yellow fruits. I also have about 6 rooted cutting planted. The rootstock is putting out huge root suckers, so I will try to stool the tree and use it as a source for future pear and apple grafts if I can.

I got it for free from work because the graft union broke while in transit.

 

[Telemark]

Here's the tree. It's growing like crazy indoors. I will be planting it outside later this week.

 

[Lucky_P]

I wondered if that was the case.
Some nurseries have grafted some of the apple serviceberries on hawthorn understock...with lots of thorny suckers popping up.