E-Flora BC: Electronic Atlas of the Flora of British Columbia

Pedicularis langsdorfii subsp. arctica (R. Br.) Pennell
Langsdorf's lousewort (arctic lousewort)
Orobanchaceae (Broom-rape family)
(Previously in Scrophulariaceae)

Introduction to Vascular Plants
Once images have been obtained, photographs of this species will be displayed in this window.Click on the image to enter our photo gallery.
Currently no image is available for this taxon.
E-Flora BC Static Map
Distribution of Pedicularis langsdorfii subsp. arctica
Click here to view the full interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Perennial herb from a stout yellow taproot surmounted by a heavy, somewhat woody stem-base; stems 1 to several, erect, 5-30 cm tall, unbranched, nearly smooth to somewhat long-woolly.
Basal leaves stalked, lanceolate, 4-7 cm long, pinnately lobed to deeply cleft, the lobes round-toothed to entire, the stalks somewhat winged; stem leaves alternate, rather numerous and not much smaller than the basal ones.
Inflorescence a dense, bracted, terminal spike of several to many flowers, the spike compact to elongated, the bracts similar to the leaves but reduced upward; corollas pink to purple, 20-25 mm long, 2-lipped, the upper lip 8-12 mm long, arched, hood-like, beakless but with a pair of slender teeth near the tip, the lower lip 3-lobed; calyces 7-10 mm long, long-woolly, 5-toothed, the teeth triangular, 2-3 mm long; stamens 4, the filaments long-hairy to nearly smooth.
Capsules, lance-oblong, asymmetrical, somewhat flattened and curved, smooth, 12-15 mm long; seeds several.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to dry tundra, heath, rocky meadows, slopes and ridges in the alpine zone; frequent in BC east of the Coast Mountains and north of 52degreeN; circumpolar, N to AK, YT and NT and E to SW AB; Greenland, N Asia.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Pedicularis langsdorfii var. arctica (R. Br.) Polunin

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References