Calamus vs Cotton Burdock

Acorus calamus compared with Arctium tomentosum

Key Differences

• Calamus is Least Concern while Cotton Burdock is Endangered.

Taxonomic Classification

Rank	Calamus	Cotton Burdock
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Liliopsida (Monocots)	Magnoliopsida (Dicots)
Order	Acorales (Acorales)	Asterales (Daisies & Sunflowers)
Family	Acoraceae	Asteraceae (Daisy Family)
Genus	Acorus	Arctium
Species	Acorus calamus	Arctium tomentosum

Evolutionary Relationship

Calamus and Cotton Burdock share a common ancestor at the Phylum level: Magnoliophyta. (Flowering Plants)

Conservation Status

Calamus

LC — Least Concern

Cotton Burdock

EN — Endangered

Physical Characteristics

Attribute	Calamus	Cotton Burdock
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Calamus

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical coniferous forests within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (South Africa), Asia (5 countries), Europe (30 countries), and North America (Canada, United States).

Cotton Burdock

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Kyrgyzstan, Uzbekistan), Europe (10 countries), and North America (Canada, United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Calamus

The Calamus (Acorus calamus) is a species in the genus Acorus. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical coniferous forests within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Shared Countries

Both species can be found in 12 countries:

🇧🇪 Belgium 🇧🇬 Bulgaria 🇨🇦 Canada 🇨🇿 Czech Republic 🇩🇰 Denmark 🇫🇮 Finland 🇳🇴 Norway 🇷🇴 Romania 🇷🇺 Russia 🇸🇰 Slovakia 🇸🇪 Sweden 🇺🇸 United States