Canadian Fleabane Essential Oil (Erigeron canadensis)
Overview
Canadian Fleabane may also be referred to as Fleawort, Prideweed, Erigeron, Canadian Horseweed, Horseweed, Fleabane or Mare's Tail, Conyza Canadensis. It is typically processed in North America using steam or hydro distillation as a method for extracting oil from the flowers & leaves.
Summary
Used for hypertension, hepatitis, accelerated aging. Dilute 50-50 with a carrier oil. Has been used in treatment of neuropathy (non-diabetic related), and blended with Spearmint essential oil for female hormonal balancing.

Essential Facts
- Aroma Description:
- Common Name(s): Fleawort, Prideweed, Erigeron, Canadian Horseweed, Horseweed, Fleabane or Mare's Tail, Conyza Canadensis
- Botanical Family: Asteraceae
- Botanical Genus: Erigeron
- Major Compounds: Limonene, matricaria ester, trans-a-bergamotene, germacrene-D
- Perfumery Note: Middle
- Color: Water-white to pale yellow
- Countries of Production: North America
- Indigenous Country: Canada & USA
- Cultivation: Wildcrafted
- Processing Methods: Steam or Hydro Distillation
- Part Typically Used: Flowers & Leaves
- Shelf Life: 4 years
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Conservation Status:
[NE] Not Evaluated
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Ethically and sustainably sourced
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Vegan
Essential Details
Benefits & Uses
May be benefitial for addressing the following ailments:
Back Pain
Coughs
Diarrhea
Fever
Headache
Hemorrhoids
Hypertension (High Blood Pressure)
Insect Repellents
Muscular aches and pains
Sore Throat
Therapeutic Benefits of Canadian Fleabane:
Analgesic
Anti-aging
Anti-inflammatory
Anti-rheumatic
Anti-spasmodic
Astringent
Digestive tonic
Diuretic
Emmenagogue
Hormone Balancer
Insect Repellent
Tonic
Vermifuge
Other Uses for Canadian Fleabane:
Aromatherapy
Massage
Natural Perfumery
Personal Care
Skin Care
Blends
Cautions & Safety
Cautions when using Canadian Fleabane:
Safety Precautions for Canadian Fleabane:
Contraindications of Canadian Fleabane:
Non toxic and non irritant.
No contraindication known under normal physiological doses.
Possible skin sensitization if oxidized. Store refrigerated to extend shelf life; check at 14 months and frequently thereafter for signs of oxidation. Not recommended for use if oxidized.
Botany
Botanical Description of Canadian Fleabane:
Considered a weed rather than a herb, Canadian fleabane is an erect annual that grows to 2.2 metres tall. The stem rises from a clump of basal leaves that wilt later and alternate lance-shaped, dark green leaves have coarse white hairs, and margins that are occasionally toothed. Numerous tiny daisy-like white flowers appear throughout the year.
History
History of Canadian Fleabane:
The American Indians introduced the herb’s medicinal virtues to the early settlers of the New World who spread the word about its benefits. Herbalist to King Charles 1 of England, John Parkinson, heard about the medicinal uses of the herb and in 1640 described it as a species of America. Interestingly, the herb was found growing in the botanical gardens of Paris in 1653. The only way fleabane’s presence could be explained was that it was introduced to the gardens by seeds that were attached to stuffed birds or beaver skins.
Articles
Canadian Fleabane Articles or Publications:
- PubMed: De novo genome assembly of the economically-important weed Conyza canadensis using integrated data from multiple sequencing platforms.
- PubMed: In Vivo 31P-NMR Studies of Glyphosate Uptake, Vacuolar Sequestration, and Tonoplast Pump Activity in Glyphosate Resistant Horseweed (Conyza canadensis).
- PubMed: Classification and identification of metal-accumulating plant species by cluster analysis.
- PubMed: Conyzicola lurida gen. nov., sp. nov., isolated from the root of Conyza canadensis.
- PubMed: Arbuscular mycorrhizal fungal mediation of plant-plant interactions in a marshland plant community.
- PubMed: Physiological and transcriptional responses of Baccharis halimifolia to the explosive "composition B" (RDX/TNT) in amended soil.
- PubMed: Conyza canadensis suppresses plant diversity in its nonnative ranges but not at home: a transcontinental comparison.
- PubMed: Global perspective of herbicide-resistant weeds.
- PubMed: Nocardioides endophyticus sp. nov. and Nocardioides conyzicola sp. nov., isolated from herbaceous plant roots.
- PubMed: [Photosynthetic characteristics of an invasive plant Conyza canadensis and its associated plants].
- PubMed: Antifungal activity and composition of essential oils of Conyza canadensis herbs and roots.
- PubMed: Two non-target mechanisms are involved in glyphosate-resistant horseweed (Conyza canadensis L. Cronq.) biotypes.
- PubMed: Conyzagenin-A and B, two new epimeric lanostane triterpenoids from Conyza canadensis.
- PubMed: Bioassay-directed isolation and identification of phytotoxic and fungitoxic acetylenes from Conyza canadensis.
- PubMed: Vacuolar glyphosate-sequestration correlates with glyphosate resistance in ryegrass (Lolium spp.) from Australia, South America, and Europe: a 31P NMR investigation.
- PubMed: Chemical composition and herbicidal activity of the essential oil from a Cistus ladanifer L. population from Spain.
- PubMed: [Studies on the chemical constituents from Conyza canadensis].
- PubMed: Cross-resistance of horseweed (Conyza canadensis) populations with three different ALS mutations.
- PubMed: Antiproliferative constituents of the roots of Conyza canadensis.
- PubMed: Antimicrobial activities of Conyzolide and Conyzoflavone from Conyza canadensis.
- PubMed: The effect of polyphenolic-polysaccharide conjugates from selected medicinal plants of Asteraceae family on the peroxynitrite-induced changes in blood platelet proteins.
- PubMed: Agricultural impacts of glyphosate-resistant soybean cultivation in South America.
- PubMed: Characterization of the horseweed (Conyza canadensis) transcriptome using GS-FLX 454 pyrosequencing and its application for expression analysis of candidate non-target herbicide resistance genes.
- PubMed: Differential susceptibility to glyphosate among the Conyza weed species in Spain.
- PubMed: Phenylpropanoyl esters from Horseweed (Conyza canadensis) and their inhibitory effects on catecholamine secretion.
- PubMed: Rapid vacuolar sequestration: the horseweed glyphosate resistance mechanism.
- PubMed: [Effects of soil factors on vegetation community structure in an abandoned subtropical paddy wetland].
- PubMed: Horseweed with reduced susceptibility to glyphosate found in the czech republic.
- PubMed: Permanent Genetic Resources added to Molecular Ecology Resources database 1 January 2009-30 April 2009.
- PubMed: Identification of a Cd accumulator Conyza canadensis.
- PubMed: Hyperaccumulative property comparison of 24 weed species to heavy metals using a pot culture experiment.
- PubMed: Weed species shifts in glyphosate-resistant crops.
- PubMed: Resistance to glyphosate from altered herbicide translocation patterns.
- PubMed: Host plants of the tarnished plant bug (Heteroptera: Miridae) in Central Texas.
- PubMed: Effects of the extract from Conyza canadensis on human blood platelet aggregation.
- PubMed: A new C-10 acetylene and A new triterpenoid from Conyza canadensis.
- PubMed: Review of potential environmental impacts of transgenic glyphosate-resistant soybean in Brazil.
- PubMed: Transfer of glyphosate resistance: evidence of hybridization in Conyza (Asteraceae).
- PubMed: [Photosynthetic characteristics and coenological survey of Lactuca serriola in its invaded area].
- PubMed: Transformation and segregation of GFP fluorescence and glyphosate resistance in horseweed (Conyza canadensis) hybrids.
- PubMed: Antioxidant and antiaggregatory effects of an extract from Conyza canadensis on blood platelets in vitro.
- PubMed: Ferritin2 gene in paraquat-susceptible and resistant biotypes of horseweed Conyza canadensis (L.) Cronq.
- PubMed: [Absorption and accumulation of heavy metals by plants around a smelter].
- PubMed: Tissue culture and transient transformation of Marestail (Conyza canadensis (L.) Cronquist).
- PubMed: 'Candidatus Phytoplasma graminis' and 'Candidatus Phytoplasma caricae', two novel phytoplasmas associated with diseases of sugarcane, weeds and papaya in Cuba.
- PubMed: [Responses of Conyza canadensis to different concentrations of copper in soil].
- PubMed: Herbicide-resistant crops and weed resistance to herbicides.
- PubMed: Potential of weed species applied to remediation of soils contaminated with heavy metals.
- PubMed: Inheritance of evolved glyphosate resistance in Conyza canadensis (L.) Cronq.
- PubMed: Response of selected horseweed (Conyza canadensis (L.) Cronq.) populations to glyphosate.
- PubMed: Role of reactive oxygen species and antioxidants in plant disease resistance.
- PubMed: A review of physiological and biochemical aspects of resistance to atrazine and paraquat in Hungarian weeds.
- PubMed: Shikimate accumulates in both glyphosate-sensitive and glyphosate-resistant horseweed (Conyza canadensis L. Cronq.).
- PubMed: Novel sphingolipids from Conyza canadensis.
- PubMed: Sphingolipids from Conyza canadensis.
- PubMed: Paraquat resistance of weeds--the case of Conyza canadensis (L.) Cronq.
- PubMed: Estimation of base temperatures for nine weed species.
- PubMed: Antiinflammatory Activity of Conyza canadensis.
- PubMed: Anti-inflammatory activity of extracts from Conyza canadensis.