Argentine fleabane vs Common Fleabane

Erigeron bonariensis compared with Erigeron philadelphicus

Taxonomic Classification

Rank	Argentine fleabane	Common Fleabane
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order same	Asterales (Daisies & Sunflowers)	Asterales (Daisies & Sunflowers)
Family same	Asteraceae (Daisy Family)	Asteraceae (Daisy Family)
Genus same	Erigeron	Erigeron
Species	Erigeron bonariensis	Erigeron philadelphicus

Evolutionary Relationship

Argentine fleabane and Common Fleabane share a common ancestor at the Genus level: Erigeron.

Conservation Status

Argentine fleabane

NE — Not Evaluated

Common Fleabane

NE — Not Evaluated

Physical Characteristics

Attribute	Argentine fleabane	Common Fleabane
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Argentine fleabane

Habitat

Inhabits montane grasslands and shrublands and Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Range

Widely distributed across Africa (6 countries), Asia (9 countries), Europe (9 countries), North America (United States), Oceania and the Pacific (Fiji, Marshall Islands, Tonga), and South America (Colombia).

Common Fleabane

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (China, Japan), Europe (8 countries), and North America (United States).

Argentine fleabane

The Argentine fleabane, Erigeron bonariensis, is a species. Inhabits montane grasslands and shrublands and Mediterranean forests and woodlands within the Palearctic biogeographic realm.

Common Fleabane

<em>Erigeron philadelphicus</em> is an annual or biennial herbaceous plant in the family Asteraceae, order Asterales, commonly known as Philadelphia fleabane or common fleabane. This species produces numerous small, pale pink to white daisy-like flowerheads with many narrow ray florets surrounding a yellow disc center. <em>Erigeron philadelphicus</em> has a broad distribution spanning Asia, Europe, and North America, where it is native and widely naturalized. It typically grows in moist, disturbed habitats such as meadows, roadsides, stream banks, and open woodland, tolerating a wide range of soil types and moisture conditions. The plant is generally considered a common weed in many parts of its range and is notable for its prolific seed production, which facilitates rapid colonization of disturbed ground. Despite its weedy tendencies, the species provides valuable nectar resources for pollinators. Biological traits of this species remain poorly documented in the scientific literature.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇨🇳 China 🇮🇹 Italy 🇺🇸 United States