H.-P.Hofm. & Eb.Fisch. (L.) No year - Hofmann H-P, Fischer E Generic delimitation of Sopubia Buch.-Ham. (Scrophulariaceae), revision of Petitmenginia Bonati and description of the new Asian genus Parasopubia. Botanische Jahrbücher 125(3): 341-375. doi: 10.1127/0006-8152/2004/0125-0341.
There is no corrections for Parasopubia delphinifolia yet.