| Capnorchis canadensis (Goldie) Kuntze | Dicentra canadensis (Goldie) Walp. |
| Capnorchis cucullaria (L.) Planch. | Dicentra cucullaria (L.) Bernh. |
| Capnorchis formosa (Andrews) Planch. | Dicentra formosa (Andrews) Walp. |
| Capnorchis chrysantha (Hook. & Arn.) Planch. | Ehrendorferia chrysantha (Hook. & Arn.) Rylander |
| Capnorchis ochroleuca (Engelm.) Greene | Ehrendorferia ochroleuca (Engelm.) Fukuhara |
| Capnorchis pauciflora (S.Watson) Greene | Dicentra pauciflora S.Watson |
| Capnorchis peregrina (Rudolph) Kuntze | Dicentra peregrina (Rudolph) Makino |
| Capnorchis pusilla (Siebold & Zucc.) Kuntze | Dicentra peregrina (Rudolph) Makino |
| Capnorchis spectabilis (L.) Borkh. | Lamprocapnos spectabilis (L.) Fukuhara |
| Capnorchis uniflora (Kellogg) Kuntze | Dicentra uniflora Kellogg |