Brittle Bladderfern vs club mangrove

Cystopteris tenuis compared with Aegialitis annulata

Key Differences

• Brittle Bladderfern is Not Evaluated while club mangrove is Least Concern.

Taxonomic Classification

Rank	Brittle Bladderfern	club mangrove
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum	Tracheophyta	Magnoliophyta (Flowering Plants)
Class	Polypodiopsida (Polypodiopsida)	Magnoliopsida (Dicots)
Order	Polypodiales (Polypodiales)	Caryophyllales (Caryophyllales)
Family	Cystopteridaceae	Plumbaginaceae
Genus	Cystopteris	Aegialitis
Species	Cystopteris tenuis	Aegialitis annulata

Evolutionary Relationship

Brittle Bladderfern and club mangrove share a common ancestor at the Kingdom level: Plantae. (Plants)

Conservation Status

Brittle Bladderfern

NE — Not Evaluated

club mangrove

LC — Least Concern

Physical Characteristics

Attribute	Brittle Bladderfern	club mangrove
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brittle Bladderfern

Habitat

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

Range

Distributed across Canada and United States.

club mangrove

Habitat

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

Brittle Bladderfern

The Brittle Bladderfern (Cystopteris tenuis) is a species in the genus Cystopteris. Typically found in moist, shaded forest floors and tropical canopies.

club mangrove

Aegialitis annulata, commonly known as the club mangrove or looking-glass mangrove, is a small mangrove shrub or tree in the family Plumbaginaceae, one of the few members of this primarily non-mangrove family to be adapted to intertidal environments. The species is native to coastal mangrove forests and mudflats in Australia and Papua New Guinea, where it grows along the landward margins of mangrove ecosystems, often in areas subject to higher salinity and less frequent tidal inundation than more seaward mangrove species. Like other mangroves, A. annulata possesses salt-excreting glands on its leaves and has anatomical adaptations for salt tolerance. The elongated, club-like fruits are distinctive features of this species, floating on water and dispersing via tidal currents. A. annulata is classified as Least Concern by the IUCN, with a stable population in its native range. However, mangrove ecosystems globally face threats from coastal development, aquaculture expansion, and climate-related sea-level rise. In Australia, mangrove conservation is receiving increasing attention as these ecosystems are recognized as important carbon sinks and nursery habitats for fisheries.