Polemonium boreale

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Ordo: Ericales

Familia: Polemoniaceae
Subfamilia: Polemonioideae
Tribus: Polemonieae
Genus: Polemonium
Species: Polemonium boreale
Name

Polemonium boreale Adams
References

Mém. Soc. Imp. Naturalistes Moscou 5:92. 1817
USDA, ARS, Germplasm Resources Information Network. Polemonium boreale in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 07-Oct-06.

Vernacular names
English: Boreal Jacobs-ladder
suomi: Karvasinilatva

Polemonium boreale, the northern Jacob's-ladder[1] 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.

The whole plant is pubescent, with long woolly hairs, glandular, and grows to 5–10 cm tall. The basal leaves are more or less alternate, and pinnate, with numerous leaflets. The flowers are produced in a more or less capitate inflorescence, each flower bell-shaped, blue, 15 mm long, 2.5 times longer than the calyx. The plant has a very unpleasant smell, and grows on gravelly slopes and in crevices.

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.

References

USDA, NRCS (n.d.). "Polemonium boreale". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 October 2015.