Beggar'S-Buttons vs Common Stonewort

Arctium lappa compared with Chara vulgaris

Key Differences

• Beggar'S-Buttons is Least Concern while Common Stonewort is Endangered.

Taxonomic Classification

Rank	Beggar'S-Buttons	Common Stonewort
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Charophyta (Charophyta)
Class	Magnoliopsida (Dicots)	Charophyceae (Charophyceae)
Order	Asterales (Daisies & Sunflowers)	Charales (Charales)
Family	Asteraceae (Daisy Family)	Characeae
Genus	Arctium	Chara
Species	Arctium lappa	Chara vulgaris

Evolutionary Relationship

Beggar'S-Buttons and Common Stonewort share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Beggar'S-Buttons

LC — Least Concern

Common Stonewort

EN — Endangered

Physical Characteristics

Attribute	Beggar'S-Buttons	Common Stonewort
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).

Common Stonewort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (Denmark, Norway, Sweden), North America (United States), and South America (Brazil). 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.

Common Stonewort

<em>Chara vulgaris</em>, the common stonewort, is a species of charophyte green alga in the family Characeae, order Charales. It typically grows submerged in freshwater habitats including ponds, lakes, ditches, and slow-moving streams, often forming dense mats on the substrate. The species has a broad geographic distribution spanning Asia, Europe, and the Americas, tolerating a range of water conditions from clear to moderately turbid. <em>Chara vulgaris</em> is notable for its heavily calcified, whorled structure that gives stoneworts their characteristic encrusted appearance and makes them valuable as paleoclimate indicators in sediment records. As a primary producer, it contributes to aquatic food webs and provides habitat for invertebrates and juvenile fish. Biological traits such as individual lifespan, precise growth rates, and specific consumer relationships remain poorly documented in the literature. Despite its wide range, <em>Chara vulgaris</em> is assessed as Endangered by the IUCN, reflecting significant population declines attributed to freshwater pollution, eutrophication, and habitat degradation across much of its range. Targeted conservation of clean, oligotrophic water bodies is essential for its persistence.

Shared Countries

Both species can be found in 6 countries:

🇧🇷 Brazil 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States