There’s no denying that The American Peony Society is doing great work currently. Despite its’ geographic denomination, it is recommended for every peony enthusiast worldwide to become a member. If you choose a digital subscription only, it’s quite cheap as well. Their latest publication of their Bulletin features a long article by Don Smith which I find very interesting. He surveys the species classifications and summarizes both DNA and morphological studies to come up with a unified classification. I find it wonderful how he was able to trace the discrepancy between both views back to some wrongly labeled P. mascula russoi being P. corsica and P. anomala being P. intermedia. He then also places non-DNA sampled species within his classification. A very highly recommended article, especially if you’re into species.