Poa tanfiljewii Roshev.

Olovona, Marina V. & Nikolin, E. G., 2018, Bluegrasses (Poa L., Poaceae) of Sakha (Yakutia) Republic, an annotated checklist, Adansonia (3) 40 (7), pp. 89-102 : 100

34. Poa tanfiljewii Roshev.

In Flora of the USSR 2: 413 (1934). — Tzvelev, Arctic Flora of the USSR 2: 149 (1964); Grasses of the USSR: 469 (1976).

TYPUS. — “Timanskaya tundra, ad ripam fluv. Peczora, apud Karabosa: 8.VIII.1892. G.Tanfiljew ” (LE!) ( Tzvelev, 1976: 469). — Well drained graminoid meadow and rocky tundras, rocky slopes, sandy and pebbly banks of streams: Y-I.

GENERAL DISTRIBUTION. — Scand., East Eur., Sib.

REMARK

This species seems to belong to one of the most difficult aggregates in section Stenopoa. It combines the population, resulted presumably from hybridization of P. nemoralis and P. glauca . Species and population of uncertain taxonomic rank, attributed to this aggregate, are more mesomorphic than the common samples of P. glauca , and the uppermost node among these populations is much higher ( Olonova 1998). Pleistocene migration resulted in massive hybridization between P. nemoralis and P. glauca not only in Scandinavia, but also in Central Europe.