I’ve bought this one as Paeonia coriacea, but I’m not sure it is, as I have some others that should be this species and the foliage is different again. The foliage is somewhat tomentose on the underside and the 2 carpels are also tomentose, thus it’s not the most common form of P. coriacea at the very least. From the species key by Hong De-Yuan I couldn’t determine what it is unfortunately, but if I take the description of the species it might still be P. coriacea as this species is not always exactly the same when it comes to being tomentose or not (it’s ‘polymorphic’ as Hong would say it so eloquently). As the description goes: “leaflets 5-15 cm long, 2-8 cm wide, glabrous on both surfaces, very occasionally puberulous on the lower surface,” and the carpels normally glabrous but “very rarely very sparsely hirsute”, so it’s not easy to say “not coriacea”. You’d sometimes wish that the peony species would be easier to identify (some are), but on the other hand the more variation the better of course. I do like it, the flower is not particularly special, but the foliage is very nice I think. Rather small leaflets, usually 9, but the uppermost of each “three” is normally segmented until halfway and thus we have some 13-15 leaflets/segments on average. It’s an attractive green and as you can see from the pictures the bronze coloring from the young foliage does persist somewhat until flowering.

Here are some pictures: