Of course the office set for Larissa, the head style editor of Interview Magazine on The Carrie Diaries, would have fabulous wallpaper. The moment I saw it I just knew I had seen it before. That green is magic.
And I was right! The wall paper is called Davidia by Osborne & Little.
I decided to keep traveling down the worm hole by googling Davidia.
It turns out the Davidia, a.k.a. The Handkerchief Tree, is native to China. It now can be found in posh gardens thanks to Ernest Wilson, who went on an adventure to find the one known specimen in 1899. He sent seeds back to England, blah blah blah, stuff stuff stuff, and in conclusion, I will one day have a powder room covered in this wall paper. Thanks Ernie!