As classified in WFO snapshot
June 2024
Warning: older classification
subspecies
Polemonium acutiflorum subsp. occidentale
(Greene) Hultén
This subspecies name was first published in Acta Univ. Lund., 2 , 44(1): 1323 (1948)
This subspecies name has been reclassified since this snapshot. Its current preferred usage is a synonym .