Calamus vs Sea Knotgrass

Acorus calamus compared with Polygonum maritimum

Key Differences

• Calamus is Least Concern while Sea Knotgrass is Not Evaluated.

Taxonomic Classification

Rank	Calamus	Sea Knotgrass
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class	Liliopsida (Monocots)	Magnoliopsida (Dicots)
Order	Acorales (Acorales)	Caryophyllales (Caryophyllales)
Family	Acoraceae	Polygonaceae
Genus	Acorus	Polygonum
Species	Acorus calamus	Polygonum maritimum

Evolutionary Relationship

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

Conservation Status

Calamus

LC — Least Concern

Sea Knotgrass

NE — Not Evaluated

Physical Characteristics

Attribute	Calamus	Sea Knotgrass
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).

Sea Knotgrass

Habitat

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

Range

Distributed across Chile, India, and Portugal.

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.