Bladder Fern vs bull-oak

Cystopteris fragilis compared with Allocasuarina fraseriana

Key Differences

• Bladder Fern is Not Evaluated while bull-oak is Least Concern.

Taxonomic Classification

Rank	Bladder Fern	bull-oak
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Tracheophyta	Magnoliophyta (Flowering Plants)
Class	Polypodiopsida (Polypodiopsida)	Magnoliopsida (Dicots)
Order	Polypodiales (Polypodiales)	Fagales (Beeches & Oaks)
Family	Cystopteridaceae	Casuarinaceae
Genus	Cystopteris	Allocasuarina
Species	Cystopteris fragilis	Allocasuarina fraseriana

Evolutionary Relationship

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

Conservation Status

Bladder Fern

NE — Not Evaluated

bull-oak

LC — Least Concern

Physical Characteristics

Attribute	Bladder Fern	bull-oak
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bladder Fern

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), North America (Canada, United States), and South America (Colombia).

bull-oak

Habitat

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

Bladder Fern

The Bladder Fern (Cystopteris fragilis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

bull-oak

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