It's on the windy southwest part of the flowerbed, so the petals are windblown, but I'm thinking it looks like a flattie (which would be cool-I never had one before!), but it's also obviously an oldie, & I don't know if the flatties were around a long time ago.

It's about the size & general "shape" of iris albicans, & it opened this morning, just as the first albicans finished blooming.