Book  (2012)  Page(s) 60.  
 
Rosiers du Bengale...1ère Serie....
B. Pce Charles, Lux.

Book  (Nov 1994)  Page(s) 136.  
 
Prince Charles Bourbon. Description... flowers: dark madder-rose on opening, quickly attaining maroon tinting, and fading to lilac-magenta, when the veining of crimson-purple becomes more noticeable. These rich tints are accentuated by the pale, almost white, bases of the petals...

Book  (Apr 1993)  Page(s) 471.  
 
Bourbon (OGR), mauve, 1842, Flowers deep red-purple, fading to lavender, veined magenta, base of petals near white, semi-double, loose, crinkled; foliage large, dark; very few prickles; vigorous (to 5 ft.) growth; non-recurrent bloom.

Book  (1993)  Page(s) 92-93.  Includes photo(s).
 
Bourbon. Description. Flowers: purple-crimson. A sport of seedling from 'Bourbon Queen'. 1842.

Book  (Jun 1992)  Page(s) 115.  
 
Prince Charles Hybrid Bourbon. Hardy, ca. 1842. [Author cites information from several sources] From Buist: an offspring of the Luxembourg Gardens...

Book  (1992)  Page(s) 59.  
 
Bourbon shrub; crimson purple, paling to lilac red; blooms large, double; not remontant; growth arching, lax, 5 x 4 ft (1.5 x 1.2 m); dark leathery leaves; good scent. Origin unknown, may date before 1842.

Website/Catalog  (1985)  Page(s) 37.  
 
Prince Charles..... 4 x 3’.

Website/Catalog  (1982)  Page(s) 30.  
 
Prince Charles (Bourbon) A medium plant bearing veined maroon to lilac flowers in early Summer. Scented. Unknown date. H. (S) 5 x 4’

Website/Catalog  (Nov 1959)  Page(s) 25.  
 
(Bourbon) (previously listed as 'Roi des Pourpres') Early flowering, fairly full flowers of madder-rose, quickly passing to soft maroon lilac, veined and crinkled. Blush white centre. In the same group as 'Bourbon Queen'. One season of flowering only. Broad dark foliage. 5' x 4'

Book  (1936)  Page(s) 145.  
 
Charles, Prince (china) in Luxemburg 1842; glossy carmine to currant-red, edges light purple, medium size, double, expanded.