Alpine Bladder-fern vs Blackboard Tree

Cystopteris alpina compared with Alstonia scholaris

Key Differences

• Alpine Bladder-fern is Near Threatened while Blackboard Tree is Least Concern.

Taxonomic Classification

Rank	Alpine Bladder-fern	Blackboard Tree
Kingdom same	Plantae (plantas)	Plantae (plantas)
Phylum	Tracheophyta	Magnoliophyta (Flowering Plants)
Class	Polypodiopsida (Polypodiopsida)	Magnoliopsida (Dicots)
Order	Polypodiales (Polypodiales)	Gentianales (Gentianales)
Family	Cystopteridaceae	Apocynaceae
Genus	Cystopteris	Alstonia
Species	Cystopteris alpina	Alstonia scholaris

Evolutionary Relationship

Alpine Bladder-fern and Blackboard Tree share a common ancestor at the Kingdom level: Plantae. (plantas)

Conservation Status

Alpine Bladder-fern

NT — Near Threatened

Blackboard Tree

LC — Least Concern

Physical Characteristics

Attribute	Alpine Bladder-fern	Blackboard Tree
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Bladder-fern

Habitat

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

Range

Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

Alpine Bladder-fern

The Alpine Bladder-fern (Cystopteris alpina) is a species in the genus Cystopteris. It is currently classified as Near Threatened on the IUCN Red List. Typically found in moist, shaded forest floors and tropical canopies. Distributed across Norway and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.