Erigeron canadensis
Erigeron canadensis · Accepted scientific name
Scientific literature: Very Sparse (4 studies) · ★☆☆☆☆
Erigeron canadensis is a versatile botanical species known for its diverse pharmacological potential and therapeutic applications. The plant's flowers contain key chemical compounds such as 3,5-dihydroxybenzoic acid, 3,5-dimethoxybenzoic acid, 3beta-erythrodiol, and 3beta-hydroxyolean-12-en-28-oic acid. Through various preparations like aqueous extracts, methanol extracts, and the Erigeron complex, it exhibits significant antioxidant, bronchodilator, and cytotoxic activities. Furthermore, its ability to act as an 11B-HSD-inhibitor makes it a subject of interest for managing physiological conditions. These properties suggest its utility in treating respiratory issues like bronchitis, coughs, and the common cold, as well as managing bleeding.
- Synonyms
- Erigeron Canadensis F. Coloratus · Erigeron Paniculatus · 29 more
- Common names
- Not available
- Family
- Asteraceae
- Distribution
- Not available
- Plant Parts
- Flower
Classification
Common Names
Erigeron canadensis is a versatile plant known by a diverse array of regional and common names. Many people recognize it simply as Canada fleabane, though it is also frequently referred to as Canada fleabane (Jamaica) in certain areas. In different agricultural contexts, the species is often identified as Canada horseweed. It is also known by the name Barrilla, adding to its linguistic variety. Finally, the plant is recognized in some circles as Canadese fijnstraal, reflecting its widespread international presence.
Sources: Catalogue of Life (COL)
Synonyms
Erigeron canadensis is a plant species characterized by a complex botanical history involving numerous taxonomic synonyms. It is frequently identified in older literature under the name Conyza canadensis, reflecting shifts in scientific classification. Researchers may also encounter it labeled as Caenotus pusillus depending on the specific botanical framework being utilized. Furthermore, the species encompasses various botanical variations, including Conyza bonariensis var. angustifolia and Conyza canadensis var. incisa. Other recognized forms include Conyza canadensis var. glabrata, highlighting the intricate nomenclature surrounding this widespread plant.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Erigeron canadensis is a botanical specimen that belongs to the vast kingdom Plantae. Within this expansive realm, the plant is classified under the class Equisetopsida. It further falls into the order Asterales, showcasing its place within a specific evolutionary lineage. As a member of the diverse family Asteraceae, it shares characteristics with many well-known flowering plants. Ultimately, this species is defined by its membership in the genus Erigeron.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Erigeron |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Erigeron canadensis exhibits a widespread distribution that spans across several key regions in Africa and Macaronesia. Within the Macaronesian archipelago, this plant can be found throughout the Azores, the Canary Islands, and Madeira. Its presence is particularly notable across Northern Africa, where it thrives in diverse environments. Specific regional records highlight its establishment in countries such as Algeria and Libya. Together, these locations illustrate the broad geographical reach of this resilient species.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Erigeron canadensis is a self-supporting herb characterized by its versatile and adaptable growth form. This plant exhibits a remarkable range in stature, with individual specimens sometimes measuring as little as 0.03 m. However, many plants reach a more substantial height, often exceeding a minimum threshold of 1.00625 m. At its most robust, the species can climb to a maximum height of approximately 2.5 m. This significant variation in size allows the plant to thrive across diverse ecological niches.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Erigeron canadensis has long been recognized in traditional medicine for its ability to treat various respiratory conditions. Scientific investigations into its polyphenolic polysaccharide-protein complex have confirmed significant antitussive activity, performing similarly to the potent clinical agent codeine. Furthermore, the plant demonstrates a notable bronchodilator effect by reducing airway resistance. Beyond respiratory benefits, studies indicate that the plant possesses valuable antioxidant properties. Research also highlights its potential in oncology due to its demonstrated cytotoxic activity against specific cancer cell lines.
Compounds
Erigeron canadensis, also known as Conyza canadensis, serves as a rich source of diverse chemical constituents including several notable organic compounds. Research has identified the presence of 3,5-dimethoxybenzoic acid, 3beta-erythrodiol, and 3beta-hydroxyolean-12-en-28-oic acid within the plant. Furthermore, the species contains specific sesquiterpenic hydrocarbons such as beta-santalene and cuparene. These compounds were identified through rigorous spectroscopic methods and fractional extraction processes. The presence of these various metabolites highlights the complex chemical profile of this botanical species.
Conditions
Erigeron canadensis (referred to in the text as Conyza canadensis) demonstrates significant cytotoxic effects against A549 lung cancer cell lines. This plant also shows effectiveness in treating DU145 prostate cancer cells. In terms of antiparasitic properties, it possesses flukicidal activity against Fasciola gigantica. Furthermore, the plant's extracts impact anti-inflammatory markers such as IFN-γ. Finally, the research indicates that these extracts also affect the NO amount within stimulated cells.
Preparations
Erigeron canadensis is prepared as an aqueous extract to investigate its ability to inhibit human blood platelet aggregation. This plant is also processed into an Erigeron complex, a polyphenolic polysaccharide-protein mixture that demonstrates significant antitussive activity. Researchers have utilized methanol extracts of the species to evaluate various phytochemical profiles and antioxidant properties. Additionally, the plant is prepared as an aglycon part to study its specific inhibitory effects on collagen-induced platelet aggregation. Finally, the preparation of crude methanolic extracts (CME) has been employed to screen for flukicidal activity against parasites such as Fasciola gigantica.
Parts used
Erigeron canadensis holds significant value in traditional medicine, particularly for its application in treating various respiratory ailments. Scientific investigations have focused on isolating a specific polyphenolic polysaccharide-protein complex from the flowering parts of this plant. This complex has demonstrated a potent, dose-dependent antitussive effect that closely mimics the performance of codeine. Beyond cough suppression, the components derived from the flowers also exhibit remarkable immunomodulatory properties. Specifically, these substances can stimulate key cytokines and enhance cellular phagocytosis to support the body's immune response.