Triodanis perfoliata (L.) Nieuwl. [ Specularia perfoliata (L.) A. DC.]
no HD illustration available (m1)
Triodanis perfoliata (L.) Nieuwl. [ Campanula perfoliata L.] [Campanulaceae]
Helen Sharp, Water-color Sketches Amer. Pl.: (1888-1910) [Helen Sharp]