Polemonium boreale, the northern Jacob's-ladder or boreal Jacobs-ladder, is a plant native to the most of the high arctic. In Greenland it is found only in a small area on the east coast. It is not very common. * Native to the most of the high arctic, its range includes Svalbard. * The inflorescence consists of 3—7 (exceptionally 9), 5—15 mm flowers. * Basal leaves are pinnate with numerous small leaflets.