Pacific Lacefern
CR

Pacific Lacefern

Ctenitis squamigera

Unknown

Photo: (c) Kenneth R. Wood (NTBG), some rights reserved (CC BY-NC), uploaded by Kenneth R. Wood (NTBG)

Overview

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

Ctenitis squamigera faces severe threats from deforestation and habitat conversion in its limited montane forest range. The species' restricted distribution makes it particularly vulnerable to localized disturbances, while agricultural expansion and logging activities continue to fragment its remaining habitat. Climate change poses an additional threat by altering the specific temperature and humidity conditions required by this specialized fern.

Threat summary

Habitat

This critically endangered fern inhabits humid montane forests, typically growing in shaded understory conditions with high moisture levels. It requires specific microclimate conditions found in undisturbed tropical mountain forests at moderate to high elevations.

Conservation measures underway

Site/area protectionSpecies managementSpecies recoveryAwareness & communications

Other threatened species in DRYOPTERIDACEAE

VU

Madeira Holly Fern

Arachniodes webbiana

Stable
VU

Ctenitis iriomotensis

Declining
EN

Elaphoglossum beddomei

Declining
CR

Elaphoglossum stigmatolepis

Declining

Frequently asked questions

Why is Pacific Lacefern classified as Critically Endangered?
Pacific Lacefern 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. Ctenitis squamigera faces severe threats from deforestation and habitat conversion in its limited montane forest range. The species' restricted distribution makes it particularly vulnerable to localized disturbances, while agricultural expansion and logging activities continue to fragment its remaining habitat. Climate change poses an additional threat by altering the specific temperature and humidity conditions required by this specialized fern.
Where does Pacific Lacefern live?
Pacific Lacefern 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 Pacific Lacefern?
The main threats to Pacific Lacefern are 12.1, 5.3, 7.1, and 8.1. The full IUCN-classified threat record for this species is detailed on the species page.

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