It is Tripterygium regelii !!!!! Thank you From Wikipedia, the free encyclopedia Tripterigium regelii Tripterygium regelii, or Regel's Threewingnut (Pinyin: Dongbei Leigongteng), is a rambling, shrubby perennial deciduous yellow vine native to Korea, Japan and Manchuria. It grows to about 200 cm (79 in). Small very pretty yellowish white or white flowers appear in May-June and are produced on 203–229 mm (8.0–9.0 in) long panicles, and smell somewhat of new-mown hay. Fruits are greenish white, 3-angled, and winged We are waiting for fruits!!!!
I'm adding a habit photo for the Tripterygeum regelii - Nadia showed it to me today. The label visible in the photo does not belong to this plant.