Website/Catalog  (24 Feb 2018)  
 
Registered Name:'Poultroi'  
Synonyms:Adele Duttweiler^™, Troika^™
ARS Approved Exhibition Name: Royal Dane^™
HT, ob, 1973, Poulsen, D. T.; flowers orange, outer petals red, 4-6 in., full, high-centered, borne mostly singly, intense, sweet fragrance; recurrent; foliage large, dark, glossy, leathery; vigorous, upright, bushy growth
[(Tropicana × (Baccará × Princesse Astrid)) × Hanne] 

Book  (19 Apr 2000)  Page(s) 466.  
 
'POUmidor', HT, ob, 1971; (Royal Dane®, Troika); description; ((Tropicana X (Baccará X Princesse Astrid)) X Hanne); Deutsche Rosen-registerstelle; N. Poulsen

Book  (Dec 1998)  Page(s) 522-523.  Includes photo(s).
 
Royal Dane (POUmidor, 'Troika') Large-flowered/Hybrid Tea. Poulsen (Denmark) 1971. Royal National Rose Society James Mason Medal 1992, Royal Horticultural Society Award of Garden Merit 1993... The remarkable orange-copper flowers have red outer petals and a classic form...

Website/Catalog  (23 Oct 1998)  Page(s) 11-12.  Includes photo(s).
 
Troika Hybrid Tea. Poulsen 1972... Large well-shaped blooms of orange bronze whose outer petals are deeper reddish-orange... A fine fragrance makes this a sought after variety.

Book  (1996)  Page(s) 95.  Includes photo(s).
 
Troika ('Royal Dane') Large-flowered hybrid tea bush... a blend of reddish-orange with yellow and pink... Its first Gold Medal (in memory of James Mason) came after twenty-one years in commerce. Poulsen 1972

Book  (Sep 1993)  Page(s) 354.  Includes photo(s).
 
Royal Dane ('Troika') Large-flowered. Description... the blooms [are] large and richly fragrant, in a melange of orange and copper with touches of cerise. It grows best, and is most richly colored, in cold climates...

Book  (Apr 1993)  Page(s) 523.  
 
Royal Dane® Hybrid Tea, orange & orange blend, 1971, (POUmidor; 'Troika'); ('Tropicana' x ('Baccará' x 'Princesse Astrid') x 'Hanne'; Deutsche Rosen-registerselle; N. Poulsen. Description.

Book  (Feb 1993)  Page(s) 215.  Includes photo(s).
 
Troika Large-flowered hybrid tea. Parentage: ['Super Star' [aka 'Tropicana'] x ('Baccarà' x 'Princesse Astrid')] x 'Hanne'. (aka 'Royal Dane') Denmark 1971. Description and cultivation... The large, high-centred flowers are a mix of orange-yellow and pink... Use this rose for exhibition or cutting...

Book  (1993)  Page(s) 177.  Includes photo(s).
 
('Troika', 'Royal Dane') Hybrid Tea. Poulsen (Denmark) 1971.

Book  (May 1992)  Page(s) 408.  
 
Troika ('Royal Dane') Hybrid Tea. Poulsen (Denmark) 1971... a blend of orange and pink...