I received what were supposed to be "Bobinsana" seeds from kiwi a few years back. I beleive them to be C angustifolia, but I really don't know enough about how these plants are classified to say how sure I am of that...
This is my only one I have left. No flowers yet, I'm thinking it'll be about her year or two. It almost 3 years old now, beleive it was planted around Jan 2014. If I can remember how to upload pictures correctly, I have one pic of the whole plant (with lighter for size ref), and close ups of the front and backs of leaves. My plant looks a bit different than either of the others pictured. Compared to raintree, the leaf/leaflet structures are big; the leaflets slightly oval, are only a cm or two in size, but the whole compound leaves reach lengths of 6+in. My plant, to me, grows much like a mimosa (grown both pudica and hostilis), without thorns, and with bigger leaves. Leaves open during the day and close at night. It is different where the leaves don't seem to grow much directly from the branches, but it forms small intermediary twigs from the main branch, off to pairs of compound leaves. Hopefully you can understand what I mean by the pics.