Almost there, the first one to flower here (perhaps P. clusii would be earlier, but that one didn’t survive again): P. kesrouanensis. Blooms well before the leaflets are fully developed, I suppose in very cold weather (or high up the mountains in deeper shade) it may postpone this blooming somewhat until the leaflets are more mature. I did have a second plant of it, also grown from seed, which bloomed at a later stage of development, so there are clearly differences between plants. However that second plant didn’t survive either, even though it was growing two feet away from it in the same conditions. Small genetic differences can have large consequences I guess. The remaining plant seems to do very well though, some 14 stems on it. When in full bloom, I’ll post another image of it.