CR

Schiedea trinervis

Declining

Overview

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

Schiedea trinervis faces severe population decline due to habitat destruction from invasive plant species, particularly fountain grass and other non-native vegetation that outcompete this endemic Hawaiian species. Feral ungulates, especially goats and pigs, trample and browse the remaining populations while degrading the fragile dry forest ecosystem. Urban development and agricultural expansion have eliminated much of its historical range on the leeward slopes of Hawaiian mountains.

Threat summary

Habitat

Schiedea trinervis inhabits dry to mesic forests and shrublands on volcanic slopes, typically found in rocky outcrops and cliff faces between 300-1,200 meters elevation. This Hawaiian endemic requires well-drained soils in areas with moderate rainfall and is adapted to the unique microclimates of leeward mountain slopes.

Forest· major

Conservation measures underway

Site/area protectionSpecies recoveryEx-situ conservation