Adder’S-Mouth vs Calamus

Malaxis bayardii compared with Acorus calamus

Key Differences

• Adder’S-Mouth is Critically Endangered while Calamus is Least Concern.

Taxonomic Classification

Rank	Adder’S-Mouth	Calamus
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Liliopsida (Monocots)	Liliopsida (Monocots)
Order	Asparagales (Asparagales)	Acorales (Acorales)
Family	Orchidaceae	Acoraceae
Genus	Malaxis	Acorus
Species	Malaxis bayardii	Acorus calamus

Evolutionary Relationship

Adder’S-Mouth and Calamus share a common ancestor at the Class level: Liliopsida. (Monocots)

Conservation Status

Adder’S-Mouth

CR — Critically Endangered

Calamus

LC — Least Concern

Physical Characteristics

Attribute	Adder’S-Mouth	Calamus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Adder’S-Mouth

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Canada and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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).

Adder’S-Mouth

The Adder’S-Mouth (Malaxis bayardii) is a species in the genus Malaxis. It is currently classified as Critically Endangered on the IUCN Red List. This species inhabits Typically found in grasslands, wetlands, forests, and cultivated landscapes, found across Canada and United States.

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 2 countries:

🇨🇦 Canada 🇺🇸 United States