Erect or spreading perennial of the eastern United States.

synonym: Polemonium reptans.

Pinnate-leaved European perennial having bright blue or white flowers.

synonyms: charity, Jacob's ladder, Polemonium caeruleum, Polemonium van-bruntiae, Polymonium caeruleum van-bruntiae.

Dutch: jakobsladder
Polish: wielosił błękitny