Polemonium speciosum Polemonium prostratum Polemonium lapponicum Polemonium lanatum Polemonium lapponum Polemonium onegense Polemonium moschatum Polemonium arcticum Polemonium boreale subsp. boreale Polemonium hyperboreum Polemonium boreale var. boreale Polemonium boreale subsp. humile Polemonium hultenii Polemonium humile Polemonium humile var. macranthum Polemonium nudipedum Polemonium pulcherrimum subsp. hyperboreum Polemonium boreale subsp. genuinum Polemonium boreale subsp. macranthum Polemonium boreale subsp. richardsonii Polemonium caeruleum var. humile Polemonium caeruleum var. piliferum Polemonium boreale var. hyperboreum Polemonium lanatum subsp. boreale Polemonium lanatum var. humile Polemonium samojedorum Polemonium richardsonii Polemonium capitatum Polemonium macranthum Polemonium humile subsp. macranthum Polemonium boreale subsp. nudipedum Polemonium boreale var. macranthum
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024