Japanese black pine grafted onto Ponderosa trunk. This photo was taken in December, 2019
Here's part of what Michael Hagedorn wrote about this tree... "This is an earlier work, black pine grafted on a ponderosa trunk. I think it was grafted about 9 years ago. It’s a small tree, a chuhin at 14”. Collected years ago by Randy Knight; recently reworked by apprentice John Eads.
"In our first post on this tree, Black Pine/Ponderosa, I suggested calling it a Frankie tree, for the Frankenstein element of splicing two genetics together. And though I’m in danger of sounding like a broken record, I do think grafting has a real place for the long-needled ponderosa, particularly in the case of smaller bonsai sizes."
If you'd like to read more by Michael on this tree, scroll down to the bottom of this post
Cropped for a closer look