A very short, about 1 mm (0.039 in) and slightly wavy disk surrounds the base of one or two carpels, which are hairless or have few scattered hairs.

The following year, Jules Aimé Battandier considered the Algerian peony belongs to P. russoi var coriacea.

Louis Charles Trabut in 1889 named another specimen from Mount Babor P. algeriensis, the description of which was later that year published by Alfred Chabert.

atlantica in part XI of René Maire's Flore de l'Afrique du Nord, published posthumously in 1964.

Werner Greuter and Hervé Maurice Burdet however thought Cosson's specimen should be assigned as a subspecies to P. mascula.

[2] Paeonia algeriensis is an endemic species of Algeria, that is limited to the coastal range known as Kabylie, in particular the parts called Djurdjura, Magris and Babor Mountains, and grows in forests dominated by oak and cedar.