Article (magazine)  (Feb 2013)  Page(s) 3.  
 
In 1824 they introduced a noisette rose, ‘Landreth’s Carmine’ and around the same time a hybrid china named ‘Washington’. Although Robert Buist mentions ‘Landreth’s Carmine’ in his 1844 Rose Manual, these two roses may not have lasted much more than a generation, given that William R. Prince did not list them in his 1846 catalogue of more than 1600 roses.

Book  (1936)  Page(s) 749.  
 
Washington (china) Landreth 1824; ?

Book  (1922)  Page(s) 189.  
 
Official List of Roses Introduced in America. Compiled by Charles E. F. Gersdorff
Washington, Bengal.* (D. & C. Landreth, about 1824.)

*variety no longer in commerce

Book  (1844)  Page(s) 130.  
 
China. Washington, was one of the first American seedling roses, grown by the old house of D. and C. landreth; it is yet a distinct variety in both flowers and foliage; the former are crimson, with white at the bottom of the petals, and frequently striped more distinctly than Don Carlos; the foliage is a pale peculiar green, with red nerves; it grows and blooms freely.

Book  (1841)  Page(s) 75.  
 
Rosa Indica or (Bengal of the French) Chinese Ever-Blooming Roses.
Washington, crimson, with white, at the bottom of the petals, cupped and double, the foliage is pale green, with red nerves; it is a distinct variety, grows well, and blooms freely.

Book  (1834)  Page(s) 187.  
 
China Roses.
No. 27. Rosa Washington, is a very good and distinct variety ; the foliage is pale green with red nerves; flower full and compact, the extremity of the petals dark red, the bottom white; showing, when the flower is full expanded, a white centre, and is frequently a little striped; grows well, and blooms freely, in light sandy soil.

Originated on the substantial establishment of D. & C. Landreth, and called by them "Scarlet and White".

Book  (1830)  Page(s) 843.  
 
R. du Bengale .... B. Washington, hybride, fleurs pleines, régulières, moyennes et carnées.....Observées toutes deux chez M. Barrier.