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Pedicularis canadensis - L.

Common Name Common Lousewort
Family Scrophulariaceae
USDA hardiness 3-7
Known Hazards The plant is said to be poisonous to sheep[274].
Habitats Dry woods, thickets and clearings[43, 235].
Range Eastern N. America - Nova Scotia to Manitoba, south to northern Mexico and east to Florida.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Moist Soil Semi-shade Full sun
Pedicularis canadensis Common Lousewort


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Pedicularis canadensis Common Lousewort

 

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Summary


Physical Characteristics

 icon of manicon of flower
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.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Woodland Garden Sunny Edge; Dappled Shade; Cultivated Beds;

Edible Uses

Edible Parts: Leaves
Edible Uses:

Leaves - cooked[105, 161, 177, 257].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
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].

References   More on Medicinal Uses

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Other Uses

None known

Special Uses

References   More on Other Uses

Cultivation details

A semi-parasitic plant, growing on grass roots. Rather difficult to establish in cultivation, it is best grown in conditions that approximate to its native habitat[200]. It requires a moist peaty soil and the presence of host grasses[1]. The plant is said to parasitize at least 80 different species in 35 different genera[274]. Requires a partially shaded to sunny site in a well-drained gritty but moist soil[200].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

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The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

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Plant Propagation

Seed - sow in pots of turf collected from the proximity of wild colonies or sow directly onto the sites where the plants are to remain[200]. Division of established plants might be possible in the spring. Establish the divisions near the parent plants[200]

Other Names

If available other names are mentioned here

Native Range

NORTHERN AMERICA: Canada (Québec (south), Ontario (south), New Brunswick (Charlotte Co.), Manitoba (south)), United States (Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Iowa, Kansas (east), Minnesota, Missouri, Nebraska (east), North Dakota (east), South Dakota (east), Illinois, Oklahoma (east), Wisconsin, Colorado (east-central), Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, New Mexico (north), Texas)

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Pedicularis arcticaArctic lousewortPerennial0.0 0-0  LMHSNM10 
Pedicularis bicornuta Perennial0.0 -  LMHSNM01 
Pedicularis gloriosa Perennial0.8 -  LMSNM10 
Pedicularis hirsutaHairy lousewortPerennial0.1 0-0  LMSNM10 
Pedicularis kanei Perennial0.0 -  LMSNDM20 
Pedicularis lanceolataSwamp LousewortPerennial1.0 -  LMSNM10 
Pedicularis langsdorffiiLousewort, Langsdorf's lousewort, Arctic lousewortPerennial0.0 0-0  LMSNM10 
Pedicularis longiflora tubiformis Annual0.2 -  LMHSNM02 
Pedicularis oliveriana Perennial0.5 -  LMHSNM02 
Pedicularis pyramidata Perennial0.0 -  LMHSNM02 
Pedicularis resupinataLousewortPerennial1.0 -  LMSNM12 
Pedicularis sceptrum carolinumLousewortPerennial1.2 -  LMHSNM11 
Pedicularis sudeticaLousewort, Sudetic lousewort, Pacific lousewortPerennial0.3 0-0  LMHSNM20 

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Expert comment

Author

L.

Botanical References

43200235

Links / References

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