I'm on vacation, so only a short written accompaniment today. – Daniel
Pink Chinese bladdernut is poorly known in cultivation – in fact, one of the few places in the world you can see it outside of China is at UBC Botanical Garden. I don't yet have an image of its fruit (the reason for its common name), but the Kemper Center for Home Gardening has a number of images of the fruit of an eastern North America relative, Staphylea trifolia – have a look to see why these plants are called the bladdernuts.
Staphylea holocarpa var. rosea - Z6 - RHS Index of Garden Plants, Griffiths
S. colchica var. rosea has been offered by Heronswood, according to PLANT LOCATOR - WESTERN REGION. Apparently there is opportunity for confusion of names, because Thomas, ORNAMENTAL SHRUBS, CLIMBERS AND BAMBOOS says
"While the white form is very beautiful in flower, the more usual garden plant has clear light pink flowers and is I think to be preferred. Though the species' leaves are apt to be downy beneath, the garden form, known as 'Rosea', has leaves glabrous beneath, purplish when young. The variety rosea - of botanical distinction - has also pink flowers but leaves woolly beneath when young and retaining some of this woolliness into the summer."