Additions are provided on the distribution of rare species of Potentilla in the territory of the Altai Mountain Country (AMC). Potentilla hubsugulica is reported for the first time from the flora of Kazakhstan; P. crantzii, P. penniphylla, and P. rigidula are new records for China. New to Russia are P. rhipidophylla and P. tytthantha, and new to Western Siberia are P. hubsugulica, P. × olchonensis and P. stepposa. These five species, as well as P. chalchorum and P. tuvinica, complemented the flora of the Republic of Altai. Among the plants mentioned, P. tytthantha is endemic to the AMC. All studied collections are cited, with comments provided on the relationships, ranges, and primary morphological differences of the discussed taxa. For the AMC subendemic P. rigidula, we present a scanned herbarium specimen image and photos of wild plants from the new locality. In addition, its general distribution has been mapped based on all known, reliably identified collections and observations.
Кечайкин et al. (Mon,) studied this question.