Article (magazine)  (2003)  Page(s) 137.  
 
Georgia: Kartli, Igoeti, 630 m Sandstones, deciduous forest gentle NW slope, thick soil, P. caucasica (= P. daurica ssp.coriifolia)

Georgia: Borjomi, National Park, 870 m Volcanic rock, N. slope, mixed conifer and deciduous broad-leaved forest... The type locality of P. ruprechtiana (= P. triternata f. coriifolia = P. daurica ssp. coriifolia>)

Russia: Krasnodar, E of Klyuch, 400 m Sandstone, S. and N. slope, deciduous forest....P. caucasica (= P. daurica ssp. coriifolia)

Article (magazine)  (2003)  Page(s) 145.  
 
KEY TO SUBSPECIES OF P. DAURICA
1 Leaflets villose and (or) pilose on lower surface or glabrous; oblong or elliptic-oblong; apex rounded, acute to acuminate.
2 Petals red; leaflets glabrous on both sides or sparsely villose on lower side ..........ssp. coriifolia (Rupr.) D. Y. Hong

Paeonia daurica ssp. coriifolia (Ruprecht) D. Y.Hong, stat. nov. = Paeonia triternata f. coriifolia Ruprecht, in Mem. Acad. Imper. Sci. St.-Petersb. ser. 7.15(2): 46. 1869. P. corallina ssp. triternata var. coriifolia (Rupr.) Busch, Fl. Caucas. Crit. 3(3): 12, 1901....
Paeonia corallina var. caucasica Schipczinsky in Notul. Syst. Herb. Hort. Bot. Petrop. 2: 45. 1921...
Paeonia triternata auct. non Pall. ex. DC: Ruprecht, in Mem. Acad. Imper. Sci. St. Petersb. ser. 7. 15(2) (Fl. Caucas.)...

This subspecies is found at altitudes below 1000 m in western and north-western Caucasus and grows in deciduous forests dominated by Quercus, Fagus, Ulmus, Acer and Fraxinus or in mixed deciduous broad-leaved and conifer forests dominated by Picea, Fagus and Quercus. It is found on a wide range of sandstone, limestone and volcanic rocks, 2n = 10.... It differs from the other subspecies in having red petals and glabrous or sparsely villose leaflets.