bull-oak vs limestone fern

Allocasuarina luehmannii compared with Gymnocarpium robertianum

Key Differences

• bull-oak is Vulnerable while limestone fern is Critically Endangered.

Taxonomic Classification

Rank	bull-oak	limestone fern
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Magnoliophyta (Flowering Plants)	Tracheophyta
Class	Magnoliopsida (Dicots)	Polypodiopsida (Polypodiopsida)
Order	Fagales (Beeches & Oaks)	Polypodiales (Polypodiales)
Family	Casuarinaceae	Cystopteridaceae
Genus	Allocasuarina	Gymnocarpium
Species	Allocasuarina luehmannii	Gymnocarpium robertianum

Evolutionary Relationship

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

Conservation Status

bull-oak

VU — Vulnerable

limestone fern

CR — Critically Endangered

Physical Characteristics

Attribute	bull-oak	limestone fern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

bull-oak

Habitat

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

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.

bull-oak

The bull-oak (Allocasuarina luehmannii) is a species in the genus Allocasuarina. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.