EN

Pipturus schaeferi

Declining

Overview

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

Pipturus schaeferi faces severe habitat degradation from invasive plant species that outcompete native vegetation in its limited Hawaiian forest range. Urban development and agricultural expansion continue to fragment the remaining suitable habitat patches. The species' restricted distribution makes it particularly vulnerable to stochastic events and further habitat loss.

Threat summary

Habitat

This Hawaiian endemic shrub inhabits mesic to wet native forests at mid-elevations, typically growing in understory areas with rich volcanic soils. It requires intact native forest ecosystems with adequate canopy cover and minimal disturbance from invasive species.

Other threatened species in URTICACEAE

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Urera cuneata

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CR

Haroldiella sykesii

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CR

Pipturus tooviianus

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CR

Neraudia kauaiensis

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Frequently asked questions

Why is Pipturus schaeferi classified as Endangered?
Pipturus schaeferi 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. Pipturus schaeferi faces severe habitat degradation from invasive plant species that outcompete native vegetation in its limited Hawaiian forest range. Urban development and agricultural expansion continue to fragment the remaining suitable habitat patches. The species' restricted distribution makes it particularly vulnerable to stochastic events and further habitat loss.
Where does Pipturus schaeferi live?
Pipturus schaeferi 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 Pipturus schaeferi?
The main threats to Pipturus schaeferi 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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