Polemonium occidentale Greene

Stems solitary from the upturned end of a mostly short and simple horizontal rhizome, erect, to 10 dm; lower lvs with 1–27 lfls 1–4 cm, the middle and upper smaller; fls crowded in a typically elongate and somewhat thyrsiform infl; cor 10–16 mm, fully as wide, the lobes longer than the tube; stamens about equaling or a little shorter than the cor; style conspicuously surpassing the stamens. Arbor-vitae bogs in n. Minn.; widespread in the w. cordillera. July.