Book  (1907)  Page(s) 61.  
 
603. CURIOSA; P....(Guerin, 1854)
(1) 1854, Dessert's MSS.
(2) Cornell Plot No. 379.

Magazine  (7 Jul 1900)  Page(s) 710.  
 
The Paeonies.
Messrs. Barr & Sons, King Street, Covent Garden, London, W.C., and Long Ditton, Surrey, as growers of hardy plants, &c., have over two acres devoted to them. On Staurday, June 23rd, notes were made of a number of fine varieties which they largely cultivate in their nursery at the address just given. 
Doubles.
Curiosa [is] a free blooming and tall-growing lilac-pink Pæonia, very fine...

Website/Catalog  (1895)  Page(s) 23.  
 
Barr's Hardy Double Chinese Pæonies.
Roses and Pinks. (Mostly rose-scented, all beautiful.)
Curiosa, pink, tipped white, tall grower, 2/6.

Website/Catalog  (1868)  Page(s) 23.  
 
Paeonia herbacea (chinensis).
218 Curiosa, lebhaft rosenroth...8 Sgr.