Common Lousewort

Pedicularis canadensis

Physical Characteristics

Pedicularis canadensis is a PERENNIAL growing to 0.4 m (1ft 4in). See above for USDA hardiness. It is hardy to UK zone 3. It is in flower from July to August. The species is hermaphrodite (has both male and female organs). Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Distribution

Eastern N. America - Nova Scotia to Manitoba, south to northern Mexico and east to Florida.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Cultivated Beds;

Edible Uses

Edible Parts: Leaves Edible Uses: Leaves - cooked[105, 161, 177, 257].

Medicinal Uses

Antitumor Aphrodisiac Blood tonic Cardiac Poultice Stomachic The roots are blood tonic, cardiac and stomachic[257]. A tea is used in the treatment of stomach aches, ulcers, diarrhoea, anaemia and heart troubles[222, 257]. A poultice of the root is applied to swellings, sore muscles and tumours[218, 257]. The finely grated roots were secretly added to food as an alleged aphrodisiac[222]. An infusion of the leaves has been used to procure an abortion[257]. An infusion of the fresh or dried leaves has been used to treat a sore throat[257].

Known Hazards

The plant is said to be poisonous to sheep[274].