EN

Cyrtomium hemionitis

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Cyrtomium hemionitis faces severe population decline primarily due to habitat destruction from urban development and agricultural expansion across its limited range in East Asia. The species is particularly vulnerable to forest fragmentation, which isolates remaining populations and reduces genetic diversity. Climate change poses an additional threat by altering the cool, humid microclimate conditions this fern requires for successful reproduction and establishment.

Threat summary

Habitat

This endangered fern inhabits shaded rocky crevices and forest understories in temperate montane regions, typically growing on limestone substrates or volcanic rock faces. It requires consistently moist, well-drained conditions with filtered sunlight and is often found in association with other shade-tolerant fern species.

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EN

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Frequently asked questions

Why is Cyrtomium hemionitis classified as Endangered?
Cyrtomium hemionitis is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Cyrtomium hemionitis faces severe population decline primarily due to habitat destruction from urban development and agricultural expansion across its limited range in East Asia. The species is particularly vulnerable to forest fragmentation, which isolates remaining populations and reduces genetic diversity. Climate change poses an additional threat by altering the cool, humid microclimate conditions this fern requires for successful reproduction and establishment.
Where does Cyrtomium hemionitis live?
Cyrtomium hemionitis occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Cyrtomium hemionitis?
The main threats to Cyrtomium hemionitis are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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