What I've learned about corkbark black pines is that there are quite a few varieties, but the fall loosely into a couple types of bark, flaky/scaly...or...heavy wings. If the tree in your photo is a corker, it's probably the former. My 'Hachi Gen' is considered a corkbark black pine, and its bark is similarly flaky. Other corkbark varieties show deep fissures in the bark, which result in wing-like bark that extends outward. Here are a couple photos of 2 of my corkers, both are pretty young. Also, a couple of bigger corkers, which are not mine...yet...
Thanks for your information so far.
This is a tree bought from Kim's nursery (Phelan, CA) in 1/2009. You can see the price on the pot.(I got 30% off from that price . It's trunk base diameter is 2 1/2 " , 21" height and 15" width. The 1st pic. was taken in 1/2009. The 2nd pic. was taken few days ago. I let it grow before restyle it; however, it will be received September trimming schedule this year. Bonhe