What is on general sale as Canna 'Richard Wallace' is obviously an Italian Group cultivar, but which funnily enough matches exactly the description of Canna 'Austria', and is, like all that group, seed sterile. It has a labellum wider than the staminodes, and a very wide stamen. It is also seed sterile.
Catalogues from the venerable house of Wilhelm Pfitzer, the breeders of this cultivar, clearly state that Canna 'R. Wallace' was a Crozy Group cultivar.
Canna 'R. Wallace' was entered in the 1907 Royal Horticultural Society (RHS) outdoor trials as a gladiolus-type (Crozy Group) and not an orchoides-type (Italian Group). That evidence is overwhelming, because the RHS do not make elementary mistakes, especially in the pedantic Victorian age. The entry in the year book simply states "Canna 'R. Wallace' — Gladiolus-flowered, pale yellow, faintly spotted with rose." That description matches exactly the specimen that we, at Claines Canna, purchased from the old and revered house of Suttons, who hold the Royal Warrant. That is a Crozy Group specimen, and is seed fertile. We still have it growing, although suffering with Canna virus and grown away from the main collection.
Probably, at one time Quality Gladiolus also had the real-thing growing there, as well as the incorrectly named Italian Group cultivar now in wide circulation.
Wikipedia Canna cultivar groups