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
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E-Flora BC Static Map
Distribution of Pedicularis langsdorfii subsp. arctica
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Species Information

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General:
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.
Leaves:
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.
Flowers:
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.
Fruits:
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

Climate

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