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Polemoniaceae
Polemonium
Polemonium occidentale
Polemonium occidentale
25% complete
Western jacob's-ladder
Greene 1890 -
Pittonia 2: 75 (1890)
Specifications
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Synonyms
Polemonium acutiflorum subsp. occidentale
(Greene) Hultén
Polemonium caeruleum subsp. occidentale
(Greene) J.F.Davidson
Polemonium occidentale subsp. typicum
Wherry
Polemonium caeruleum var. occidentale
(Greene) H.St.John