Beggar'S-Buttons vs Ray's Knotgrass

Arctium lappa compared with Polygonum oxyspermum

Key Differences

• Beggar'S-Buttons is Least Concern while Ray's Knotgrass is Endangered.

Taxonomic Classification

Rank	Beggar'S-Buttons	Ray's Knotgrass
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Asterales (Daisies & Sunflowers)	Caryophyllales (Caryophyllales)
Family	Asteraceae (Daisy Family)	Polygonaceae
Genus	Arctium	Polygonum
Species	Arctium lappa	Polygonum oxyspermum

Evolutionary Relationship

Beggar'S-Buttons and Ray's Knotgrass share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Beggar'S-Buttons

LC — Least Concern

Ray's Knotgrass

EN — Endangered

Physical Characteristics

Attribute	Beggar'S-Buttons	Ray's Knotgrass
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beggar'S-Buttons

Habitat

Inhabits temperate coniferous forests within the Palearctic biogeographic realm.

Range

Widely distributed across Africa (Algeria), Asia (North Korea, Taiwan), Europe (11 countries), North America (Canada, United States), and South America (Brazil).

Ray's Knotgrass

Habitat

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

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Beggar'S-Buttons

The Beggar'S-Buttons (Arctium lappa) is a species in the genus Arctium. It is currently classified as Least Concern on the IUCN Red List. Inhabits temperate coniferous forests within the Palearctic biogeographic realm.

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden