(2018)  Page(s) 390.  
 
Rosa chinensis var. spontanea originates from China and is endemic to the Hubei, Sichuan, Chongqing, and Guizhou provinces .... It has been overharvested by local people and pharmaceutical companies because of its medicinal usefulness and has become rare in its wild habitats. It was uncertain whether it still existed as a wild-living species because investigators failed to collect samples of this species in the field .... It has been listed as an endangered (EN) species in a recent biodiversity report ..... Fortunately, during systematic and integrative field investigations focusing on this species, we recently found several populations in the wild.....It is important to mention that little information is available about R. chinensis var. spontanea except the fact that it is a diploid plant ....and that it emits 1,3,5-trimethoxybenzene, together with methyleugenol and isomethyleugenol, as minor floral scent compounds ..., resulting from O-methytransferas genes...
In the subgenus Rosa, R. chinensis var. spontanea from section Chinenses was sister to R. lichiangensis from section Synstylae, and then clustered with another species from section Chinenses, R. odorata var. gigantean, confirming that R. sections Chinenses and Synstylae, defined in the traditional taxonomic system, shared a more recent ancestor and could be merged as one section

(2018)  Page(s) 397.  
 
In the subgenus Rosa, R. chinensis var. spontanea from section Chinenses was sister to R. lichiangensis from section Synstylae, and then clustered with another species from section Chinenses, R. odorata var. gigantean, confirming that R. sections Chinenses and Synstylae, defined in the traditional taxonomic system, shared a more recent ancestor and could be merged as one section