Pedicularis canadensis L.
Source: USDA Plants_111306
Family: Orobanchaceae
Canadian Lousewort,  more...
Pedicularis canadensis image
Sue Carnahan  
Perennial by short rhizomes, forming large clumps; stems 1.5-4 dm, sparsely villous; lvs chiefly basal, lanceolate to narrowly oblong or oblanceolate, pinnately lobed into several oblong or ovate, crenate segments; lower lvs on petioles often longer than the blade, the cauline progressively reduced and the upper subsessile; spikes commonly solitary, 3-5 cm, in fr to 20 cm, the bracts oblanceolate, usually toothed only at the tip; cal very oblique, the 2 lateral halves entire, separated by a short cleft above and a deeper one below; cor yellow to purple, 18-25 mm, the galea with 2 slender teeth just below the rounded tip, the lower lip shorter than the galea; 2n=16. Upland woods and prairies; Que. and Me. to Man., s. to Fla. and Tex.; also Colo. to n. Mex. Apr.-June.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
From Flora of Indiana (1940) by Charles C. Deam
This species prefers a dry, sandy, and slightly acid soil, although it is often found in clayey soil, and I once found it well established in a marsh. It usually grows on white oak slopes, sometimes with beech, along streams. It is rather frequent in the lake area becoming less frequent southward and our map shows a large, open area in the southwestern part of the state. The flowers are usually yellowish, but plants with reddish flowers are not rare.
Pedicularis canadensis image
Sue Carnahan  
Pedicularis canadensis image
Sue Carnahan  
Pedicularis canadensis image
John Hilty  
Pedicularis canadensis image
Frank Mayfield  
Pedicularis canadensis image
John Hilty  
Pedicularis canadensis image
Frank Mayfield  
Pedicularis canadensis image
Frank Mayfield  
Pedicularis canadensis image
Peter Gorman  
Pedicularis canadensis image
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