Book  (2003)  
 
Prof. N. E. Hansen. HRg, dr, 1892; flowers rich velvety red, Budd

Book  (1936)  Page(s) 329.  
 
Hansen (hybrid rugosa) Budd ca. 1890 = Hansa.

Book  (1929)  Page(s) 14.  Includes photo(s).
 
"Professor N.E. Hansen Rose. Flowers large; an intense bright, rich, velvety red, with no purple or blue in them; very fragrant. Blooms throughout the season in clusters. The plants are thorny. Foliage glossy, typical rugosa, thick and leathery. This variety was originated in 1892 by Professor J. L. Budd of the Iowa State College, Ames. The present writer, as assistant in this work, was honored by having this rose named in his honor by Professor J. L. Budd. Some 1,300 flowers of Rosa Rugosa, the Siberian form imported by Professor J. L. Budd, were operated upon.

Many good double-flowered varieties resulted from this work and were distributed to a limited extent, but most of the stock was lost in later years by accident. The pollen used to produce this rose is not known, but it may have been from the General Jacqueminot, as this was the main variety used; however, the cup-shape reminds one of the American Beauty."