Jacob's-ladder (Polemonium) is a biological genus in the family Polemoniaceae and order Ericales.
Polemonium micranthum
Polemonium brandegeei
Polemonium caeruleum
Polemonium elegans
Polemonium pauciflorum
Polemonium reptans
Polemonium vanbruntiae
Polemonium foliosissimum
Polemonium longii
Polemonium chartaceum
Polemonium californicum
Polemonium nevadense
Polemonium boreale
Polemonium confertum
Polemonium carneum
Polemonium pulcherrimum
Polemonium eximium
Polemonium viscosum
Polemonium cuspidatum
Polemonium pectinatum
Polemonium occidentale
Aliciella
Loeseliastrum
Cantua
Loeselia
Allophyllum
Gilia
Giliastrum
Gymnosteris
Ipomopsis
Polemonium
Langloisia
Lathrocasis
Leptosiphon
Linanthus
Microsteris
Collomia
Phlox
Navarretia
Leptodactylon
Saltugilia
Eriastrum