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

Pedicularis sudetica Willd.
Sudetan lousewort (Oeder's lousewort; Sudeten lousewort; sudetic lousewort)
Orobanchaceae (Broom-rape family)
(Previously in Scrophulariaceae)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #31344)

E-Flora BC Static Map
Distribution of Pedicularis sudetica
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.

Pedicularis sudetica ssp. interior

Species Information

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

Perennial herb from a stout branched rhizome; stems 1 to several, clustered, erect, 5-50 cm tall, unbranched, often purplish, nearly smooth to somewhat long-hairy, long-woolly in the inflorescence.
Leaves all or mostly basal, stalked, lanceolate, 4-7 cm long, pinnately lobed to deeply cleft, the lobes toothed or cleft and the ultimate divisions again toothed, the leaf axis broad; stem leaves 0 to 2 or 3, alternate, reduced.
Inflorescence a terminal spike of several to many flowers, the spike compact at first then elongating, subtended by 1 or 2 bracts similar to the leaves but much smaller, the flowers spirally arranged; corollas pink to purple or two-toned, 15-25 mm long, 2-lipped, the upper lip often darker, somewhat arched, hood-like, 6-13 mm long, beakless but with a pair of slender teeth near the tip, the lower lip often spotted, 3-lobed, shorter than the upper lip; calyces 8-12 mm long, white-woolly to smooth, 5-toothed, the teeth lanceolate, 3-5 mm long; stamens 4, the filaments smooth.
Capsules, oblong, abruptly short-beaked, 9-14 mm long; seeds several.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to wet meadows, thickets, open forest, peaty seepage sites, streambanks, rocky slopes, heath and tundra in the subalpine and alpine zones; frequent in BC east of the Coast Mountains north of 52degreeN; circumpolar, N to AK and YT; Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Pedicularis sudetica

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 475 1556 2300
Slope Gradient (%) 0 23 300
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
6 278 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 3 8
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BAFA(48), BWBS(3), CMA(1), ESSF(10), MH(4), SWB(30)

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References