Erigeron annuus
Erigeron annuus · Accepted scientific name
Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆
Erigeron annuus is a plant species that has garnered scientific interest due to its diverse chemical profile, particularly regarding its flavonoid content and specific compounds like erigeroflavanone. Research often focuses on the flower of the plant to isolate bioactive constituents for medicinal study. Various preparations, including the ethyl acetate-soluble extract and the polar fraction, are utilized to investigate its biological potential. These extracts have been tested under specific conditions, demonstrating activity against pathogens such as Candida albicans and Salmonella enterica. Furthermore, the plant's extracts show promise in modulating biological processes related to Aldose Reductase and protein glycation.
- Synonyms
- Stenactis Annua · Aster Annuus · 11 more
- Common names
- Not available
- Family
- Asteraceae
- Distribution
- Not available
- Plant Parts
- Flower
Classification
Common Names
Erigeron annuus is a versatile plant known by a diverse array of regional and descriptive common names. It is frequently identified as annual fleabane or the eastern daisy fleabane, reflecting its floral characteristics. In various linguistic contexts, it may also be referred to as Bunghișor american or Cespica annua. Some local traditions even recognize the species under the name Amrhydlwyd Tal. These overlapping names highlight the plant's widespread presence and cultural variety across different landscapes.
Sources: Catalogue of Life (COL)
Synonyms
Erigeron annuus is a botanical subject characterized by a complex web of taxonomic synonyms. Historically, this species has been identified under various names, including Aster annuus and Diplopappus annuus. Scientific classifications also link it to specific subspecies and varieties, such as Erigeron annuus subsp. septentrionalis. Further nomenclatural variations include Erigeron ramosus subsp. septentrionalis and Erigeron ramosus var. septentrionalis. Understanding these diverse identities is essential for accurate botanical identification and study.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Erigeron annuus belongs to the kingdom Plantae, marking its place within the vast world of living vegetation. Within this kingdom, it is classified under the class Equisetopsida, showcasing its fundamental biological structure. As a member of the order Asterales, it shares evolutionary traits with a diverse array of flowering plants. This species is further nested within the prominent family Asteraceae, known for its distinctive composite flower heads. Finally, it is identified by its specific genus, Erigeron, which defines its unique botanical identity.
| 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 annuus exhibits a broad geographic footprint across the Asia-Temperate region. Its presence is firmly established within the Caucasus and the Transcaucasus, marking significant portions of its range. The species also extends into the Russian Far East, thriving in diverse environments from the Kuril Islands to the Primorye region. Furthermore, its distribution encompasses Sakhalin, highlighting its ability to adapt to varied island and mainland climates. This widespread occurrence underscores the plant's resilience across the diverse landscapes of Northern Asia.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Erigeron annuus is a self-supporting herb characterized by its resilient and upright growth form. This plant typically reaches a minimum height of 0.3 m, though it often establishes itself more robustly at 0.694 m. Depending on its environmental conditions, the species can vary significantly in stature. Ultimately, these specimens can attain a maximum height of 1.5 m. Such diverse size ranges allow the plant to adapt effectively to various ecological niches.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Compounds
Erigeron annuus serves as the natural source for the discovery of erigeroflavanone, a unique flavanone derivative. This specific compound was isolated from the ethyl acetate-soluble extract of the plant's flowers. Research indicates that erigeroflavanone possesses significant biological potential, specifically regarding its inhibitory activity. In vitro bioassays have demonstrated its ability to target protein glycation and rat lens aldose reductase. Consequently, this relationship highlights the plant's value in the study of compounds that may prevent the formation of advanced glycation end products.
Conditions
Erigeron annuus possesses significant antimicrobial properties, specifically through its ability to treat the fungal pathogen Candida albicans. The plant also demonstrates effectiveness in treating the bacterial infections caused by Salmonella enterica and Staphylococcus aureus. Beyond antimicrobial activity, its derivatives like erigeroflavanone play a role in treating the formation of advanced glycation end products. Additionally, the plant shows potential in treating aldose reductase inhibition. These diverse biological activities highlight the therapeutic versatility of compounds derived from Erigeron annuus.
Preparations
Erigeron annuus is prepared as an ethyl acetate-soluble extract from its flowers to facilitate the isolation of erigeroflavanone and other flavonoids. This plant is also prepared as an extract to undergo further phytochemical characterization. Within these studies, Erigeron annuus is prepared as a polar fraction to isolate unique derivatives like glycerylerigeroside. These various preparation methods allow researchers to identify specific compounds with significant inhibitory or antifungal activities. Consequently, the different forms of the Erigeron annuus extract serve as the essential basis for isolating bioactive molecules.
Parts used
Erigeron annuus serves as a significant botanical source for the discovery of specialized bioactive compounds. Recent chemical investigations have focused specifically on the plant's flowers to isolate unique secondary metabolites. Among these findings is the identification of erigeroflavanone, a novel 2,3-dioxygenated flavanone derivative found within the floral extracts. Scientific analysis reveals that these flower-derived isolates possess noteworthy inhibitory activity against protein glycation and aldose reductase. Such research highlights the medicinal potential hidden within the specific floral parts of this species.