Magazine  (May 1953)  Page(s) 2. trimester, p. 53.  
 
Il existe aussi le Rosa Hugonis à fleurs doubles. M. Chenault, d'Orléans, possède depuis 1921 cette variété rapportée de l'Arnold Arboretum. En voici la description :
ROSA HUGONIS FLORE PLENO. Rosa Hugonis à fleurs doubles. — Végétation érigée, branches fortes, donnant naissance à des quantités de petits rameaux se couvrant de fleurs doubles ou semi-doubles ; plus larges et d'un coloris jaune d'or plus foncé que dans le type à fleurs simples.
Floraison prolongée pendant plus d'un mois. La première des Roses apparaissant au printemps.

Magazine  (Nov 1952)  Page(s) 4. trimester, p. 114.  
 
La variété « Hugonis à fleurs doubles » que j'ai rapportée de l'Arnold Arboretum, fleurit en même temps [que Rosa hugonis], les branches sont plus fortes, plus érigées, les fleurs doubles sont plus larges, d'un ton plus jaune d'or ; l'abondante floraison se prolonge pendant plus d'un mois.

Book  (1951)  Page(s) 196.  
 
Rosa xanthina. Native of northern China. Often called "double Hugonis."

Book  (1951)  Page(s) 196.  
 
Rosa xanthina. Native of northern China. Often called "double Hugonis."

Book  (1945)  Page(s) 38.  
 
R. xanthina. This rose ranges from Afghanistan to China, and at one time was thought by Lindley to be a form of R. hemispherica. At one time it was cultivated in the gardens of this country, but like many of the old Species it disappeared. I found it growing in Northern Ireland, and Mr. Slinger very kindly gave me some eyes. It makes a lovely shrub Rose with bright yellow blooms and serrated green leaflets; glabrous on both sides. Fruits a dull red. Lovely both as a flowering and foliage specimen. [no author given]

Book  (Jul 1938)  Page(s) 91.  
 
R. xanthina, Pekin Rose, Korean Rose. - (Xanthina means yellow). Very hardy. The shoots have prickles all of one kind and not bristles. Leaves slightly hairy beneath. Flowers yellow, double, semi-double, or single, often 2 inches across. Hips red. The following types are listed in the trade: Allardi, Lindlayi, Spontanea (single) and X rugosa.

Website/Catalog  (1938)  Page(s) 49.  
 
Hybrid Musk, Bourbon, Gallica, and other types
Xanthina... Deep yellow flower; large, very numerous.

Book  (1938)  Page(s) 290.  
 
Rosa xanthina seems to be as indefinite as to precise botanical position as is R. ecae. There is nothing indefinite about its beautiful semi-double blooms of brilliant yellow, coming in with the roses above mentioned and several weeks ahead of the Harison's Yellow, that it is frequently mistaken for. It is blamed on North China and Korea, and really passes as a double hugonis.

Book  (1937)  Page(s) 80.  
 
xanthina Lindl. (pimpinellifolia) ploidy = 14
xanthinoides Nakai (syn. of xanthina Lindl.)

Magazine  (1934)  Page(s) 134.  
 
We can also grow the oriental shrub Roses in this country, including R. xanthina (the double Hugonis which blooms just as Hugonis passes)