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Summary
Physical Characteristics
Erigeron is a ANNUAL growing to 1 m (3ft 3in) by 0.5 m (1ft 8in).
See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from June to October, and the seeds ripen from July to October. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Bees, flies.
It is noted for attracting wildlife.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought.
UK Hardiness Map
US Hardiness Map
Synonyms
Erigeron canadensis.
Plant Habitats
Edible Uses
Young leaves and seedlings - cooked[105, 177]. Boiled, cooked in rice or dried for later use[183]. A nutritional analysis of the leaves is available[218]. The source of an essential oil that is used commercially for flavouring sweets, condiments and soft drinks[183]. The fresh leaves contain 0.2 - 0.66% essential oil[218].
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.
In traditional North American herbal medicine, Canada fleabane was boiled to make steam for sweat lodges, taken as a snuff to stimulate sneezing during the course of a cold and burned to create a smoke that warded off insects[254]. Nowadays it is valued most for its astringency, being used in the treatment of gastro-intestinal problems such as diarrhoea and dysentery[254]. It is said to be a very effective treatment for bleeding haemorrhoids[254]. The whole plant is antirheumatic, astringent, balsamic, diuretic, emmenagogue, styptic, tonic and vermifuge[4, 7, 9, 21, 222]. It can be harvested at any time that it is in flower and is best used when fresh[4, 207, 238]. The dried herb should not be stored for more than a year[238]. The seeds can also be used[4]. An infusion of the plant has been used to treat diarrhoea and internal haemorrhages[213] or applied externally to treat gonorrhoea[213] and bleeding piles[7]. The leaves are experimentally hypoglycaemic[218]. The essential oil found in the leaves is used in the treatment of diarrhoea, dysentery and internal haemorrhages[4, 207, 218]. It is a uterine stimulant[213] and is also said to be valuable in the treatment of inflamed tonsils plus ulceration and inflammation of the throat[4]. A tea of the boiled roots is used to treat menstrual irregularities[213]. A homeopathic remedy is made from the plant[9]. It is used in the treatment of haemorrhoids and painful menstruation[9].
References More on Medicinal Uses
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Other Uses
The plant contains small quantities of essential oil[7]. Since the plant is readily obtainable, extraction of the oil is feasible - it has a special quality that would make it suitable in the making of perfumes with unusual nuances[7, 240].
Special Uses
References More on Other Uses
Cultivation details
Prefers a well-drained light or medium neutral to alkaline soil in a sunny position, though it tolerates most conditions[238]. Originally from N. America, Canada fleabane has become naturalized in many areas of the world and is considered to be a nuisance weed in many areas[268]. The plant is very adaptable to differing conditions and can vary dramatically in height, from only a few centimetres in poor soils to as much as 3 metres tall in rich soils[213]. The plant is used commercially as a food flavouring[183]. A good bee plant[200] but unfortunately it also harbours various insect pests such as the tarnished plant bug[1].
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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Plant Propagation
Seed - we have no information on this species but suggest sowing the seed in spring in situ. An autumn sowing in situ might also be worthwhile.
Other Names
If available other names are mentioned here
Canadian fleabane.
horseweed.
Spanish: erigeron del Canada; escoba dura; hierba de caballo; hierba impia; olivarda.
French: erigéron du Canada; vergerette du Canada.
Portuguese: avoadinha.
Canada: mare's tail.
Colombia: cvenadillo.
Cuba: conyza; zancarana.
France: erigeron de Canada; vergerette de Canada.
Germany: Kanadischer berufkraut; Kanadisher katzenschweif.
India: jarayupriya.
Iraq: thail el-faras.
Italy: impi; saeppola.
Japan: himemukashiyomogi.
Madagascar: sarijamala.
Mauritius: herbe gandi.
Mexico: pegajosa.
Netherlands: fijnstraal, Canadeese.
Norway: canadese fijnstraal; hestehamp.
Poland: przymiotno kasnadyjskie.
Puerto Rico: pascueta; rozuz.
South Africa: armoedskruid; kanadese skraalhans.
Spain: altabaca; canem bord; erigeron de Canada; zamarraga.
Sweden: kanadabinka.
Turkey: sifa out.
USA: butterweed; Canada horseweed; fireweed; hogweed.
Yugoslavia (Serbia and Montenegro): repusnjaca.
Native Range
NORTHERN AMERICA: Canada (Québec, Nova Scotia, Ontario, Prince Edward Island, Saskatchewan, Alberta, Manitoba, British Columbia), United States (Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Illinois, Oklahoma, Wisconsin, Colorado, Idaho, Montana, Oregon, Washington, Wyoming, Alabama, Arkansas, Florida (north), Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, New Mexico, Texas, Arizona, California, Nevada, Utah), Mexico (Chihuahua, Durango, Sinaloa, Sonora, Tamaulipas, Zacatecas, Aguascalientes, Campeche, Chiapas, Jalisco, México, Michoacán de Ocampo, Nayarit, Oaxaca, Puebla, Querétaro, Veracruz de Ignacio de la Llave) SOUTHERN AMERICA: Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama (not common), El Salvador
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.
A common weed in temperate to tropical regions.
Conservation Status
IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed.
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.)Cronquist.
Botanical References
200
Links / References
For a list of references used on this page please go here
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