Species: ~20
Geography: temperate cool arctic regions, southern Andes.
- Polemonium acutifolium Willd., (tall jacob's ladder)
- Polemonium antarcticum Griseb.
- Polemonium boreale Adams, (Northern jacob's ladder)
- Polemonium brandegeei Greene, (Brandegee's jacob's ladder)
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Polemonium caeruleum L. - (charity, jacob's ladder - Jakosleiter),- Europe, Asia.
- Polemonium californicum, (showy jacob's ladder)
- Polemonium carneum A.Gray, (royal jacob's ladder)
- Polemonium chartaceum H.Mason, (Mason's jacob's ladder)
- Polemonium chinense Brand
- Polemonium confertum A.Gray, (Rocky Mountain jacob's ladder)
- Polemonium cuspidatum, (stiff-point jacob's ladder)
- Polemonium delicatum Rydb.
- Polemonium elegans Greene, (elegant jacob's ladder)
- Polemonium eximium Greene, (sky pilot)
- Polemonium foliosissimum A.Gray, (Towering jacob's ladder)
- Polemonium gayanum ( Wedd. ) Brand
syn.: Gilia gayana Wedd.
- Polemonium longii Fernald, (Long's jacob's ladder), - Mexico.
- Polemonium mexicanum Cerv. ex Lag.
- Polemonium micranthum Benth., (annual jacob's ladder), - North West America, Chile
- Polemonium nevadense Wherry, (Nevada jacob's ladder), - Nevada, Southwestern USA.
- Polemonium occidentale Greene, (Western jacob's ladder), - North West America.
- Polemonium pauciflorum S.Watson, (few-flower jacob's ladder), - Mexico.
- Polemonium pectinatum Greene, (Washington jacob's ladder), - California.
- Polemonium pulcherrimum Hook., (beautiful jacob's ladder)
- Polemonium reptans L., (Greek Valerian)
- Polemonium sumushanense G.H.Liu & Y.Q.Ma, - China.
- Polemonium vanbruntiae Britton, (Van Brunt's jacob's ladder), - North America.
- Polemonium viscosum Nutt., (sticky jacob's ladder), - USA.
- Polemonium yezoense (Miyabe & Kudo) Kitam.
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