Not an accepted name (status: unknown).
The accepted name is
Polemonium boreale Adams, 1817.
Polemonium boreale var. macranthum
(Cham.) Tzvelev, 1817
4% complete
No common name
Mém. Soc. Imp. Naturalistes Moscou 5: 92 (1817)
There is no corrections for Polemonium boreale var. macranthum yet.