CR

Asplenium complanatum

Stable

Overview

Asplenium tenerum is a species of fern in the family Aspleniaceae. It is a perennial lithophyte or epiphyte native to tropical Asia, Korea, Queensland, the tropical Pacific Islands, and the Seychelles.

Asplenium complanatum faces severe threats from habitat destruction due to deforestation and agricultural expansion in its limited range. The species is particularly vulnerable to changes in microclimate conditions within its forest habitat, as epiphytic ferns require specific humidity and light levels to survive. Urban development and infrastructure projects pose additional pressures on the remaining populations of this critically endangered fern.

Threat summary

Habitat

This epiphytic fern inhabits humid tropical forests, typically growing on tree trunks and branches in shaded understory environments. It requires consistent moisture levels and filtered light conditions found in mature forest ecosystems.

Forest· major

Conservation measures underway

Site/area protection

Other threatened species in ASPLENIACEAE

EN

Double Spleenwort

Asplenium anceps

Declining
VU

Madeira Rustyback Fern

Asplenium lolegnamense

Declining
EN

Asplenium schnellii

Unknown
EN

Asplenium virens

Declining

Threatened in Seychelles

EN

Acropora mossambica

Declining
EN

Imperturbatia violescens

Stable
EN

Aldabra Fody

Foudia aldabrana

Increasing
CR

Ariadna ustulata

Declining

Frequently asked questions

Why is Asplenium complanatum classified as Critically Endangered?
Asplenium complanatum is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Asplenium complanatum faces severe threats from habitat destruction due to deforestation and agricultural expansion in its limited range. The species is particularly vulnerable to changes in microclimate conditions within its forest habitat, as epiphytic ferns require specific humidity and light levels to survive. Urban development and infrastructure projects pose additional pressures on the remaining populations of this critically endangered fern.
Where does Asplenium complanatum live?
Asplenium complanatum occurs in Seychelles. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Asplenium complanatum?
The main threats to Asplenium complanatum are 11.1, 8.1, ai-1, and ai-2. The full IUCN-classified threat record for this species is detailed on the species page.

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