Article (misc)  (2005)  Page(s) 110, Table 5.1.  
 
Robusta : Triploid

Website/Catalog  (23 Oct 1998)  Page(s) 36.  Includes photo(s).

Book  (Mar 1995)  Page(s) 151.  
 
Robusta (KORgosa) Kordes (Germany) 1979. Hybrid Rugosa. Description... bright cherry red, single... perhaps the best rugosa for a season-long garden display...

Book  (1995)  Page(s) 118.  Includes photo(s).

Book  (11 Jun 1993)  Page(s) 43.  Includes photo(s).

Book  (11 Jun 1993)  Page(s) 42.  
 
'Regeliana' x unnamed seedling. Kordes (Germany) 1979. Description... briht flaming scarlet... single blossoms...

Book  (Apr 1993)  Page(s) 500.  
 
Shrub, medium red, 1979, (KORgosa; 'Kordes' Rose Robusta'); Seedling x R. rugosa; Kordes, W. Bud long, pointed; flowers medium red, single (5 petals), medium (2 1/2 in.); fragrant; foliage dark, glossy, leathery; very vigorous, upright, bushy growth.

Book  (Feb 1993)  Page(s) 107.  Includes photo(s).

Book  (1992)  Page(s) 62.  
 
(KORgosa, 'Kordes Robusta') Rugosa shrub; wine red; blooms large, single; growth stiff, 60 x 40 in (150 x 100 cm); leathery leaves; prickly; little scent. Certificate of Merit 1980. R. rugosa x seedling. Kordes 1979. Modern Shrub

Book  (1991)  Page(s) 86.  
 
Parentage: Rosa rugosa x Seedling... remontant, crimson, fragrant, 50% winter killback...