Dicentra scandens and D. macrocapons and D. torulosa. Then there's the bleeding heart shapped poppy relative Adlumia fungosa, a US native biennial vine . Also non-vining Ichthyoselmis (formerly Dicentra) macrantha (China)
I grow Dicentra scandens, which is in its second year and blooming heavily again. A very nice vine. However, it doesn't make seeds. I'm curious if anyone knows why or has any suggestions. Do I need a second plant for pollination? I'm thinking about manually transferring pollen (from this same plant) using a brush. However the plant is a favorite of the hummingbirds and they should already be doing this.
The plant never went fully dormant here (zone 10a), but sent up strong new growth this Spring.
I have yet to get a good photo, but this gives some idea of what it looks like.