Calamus vs limestone fern

Acorus calamus compared with Gymnocarpium robertianum

Key Differences

Calamus is Least Concern while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	Calamus	limestone fern
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Tracheophyta
Class	Liliopsida (Monocots)	Polypodiopsida (Polypodiopsida)
Order	Acorales (Acorales)	Polypodiales (Polypodiales)
Family	Acoraceae	Cystopteridaceae
Genus	Acorus	Gymnocarpium
Species	Acorus calamus	Gymnocarpium robertianum

Evolutionary Relationship

Calamus and limestone fern share a common ancestor at the Kingdom level: Plantae. (Plants)

View Kingdom: Plantae

Conservation Status

Calamus

LC — Least Concern

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	Calamus	limestone fern
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).

limestone fern

Habitat

Typically found in moist, shaded forest floors and tropical canopies.

Range

Distributed across Belgium, Canada, Norway, and Sweden. Currently classified as Critically 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.