Aquatic and Wetland Vascular Plants of the Northern Great Plains
Pedicularis L. -- Lousewort
Erect perennials with opposite or alternate pinnatifid leaves and terminal, bracteate spikes or spikelike racemes of yellow flowers. Calyx tubular or campanulate, oblique, obscurely lobed or with 2 prominent lateral lobes; corolla pale yellow, strongly irregular, bilabiate, the upper lip strongly concave or arched, entire, sometimes with a pair of lateral teeth near the tip, lower lip about equal to or shorter than the upper, with 2 longitudinal folds; stamens 4, didynamous, included by the upper lip. Capsule ovate to oblong, laterally flattened, loculicidally dehiscent, splitting only or mainly along the upper side.
| Lead | Characteristic | Go To |
| 1 | Calyx entire or nearly so; upper lip of the corolla with 2 lateral teeth near the tip. | P. canadensis |
| 1 | Calyx with 2 crenate, lateral lobes; upper lip of the corolla entire. | P. lanceolata |
Return to Family -- Scrophulariaceae - The Figwort Family
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