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

synonyms: charity, Greek valerian, Polemonium caeruleum, Polemonium van-bruntiae, Polymonium caeruleum van-bruntiae.

Dutch: jakobsladder
Polish: wielosił błękitny

nautical A hanging ladder of ropes or chains supporting wooden or metal rungs or steps.

synonyms: jack ladder, pilot ladder.

Dutch: jakobsladder, touwladder
Polish: drabina Jakubowa