Geniostoma cyrtandrae
Overview
Geniostoma cyrtandrae, the Koʻolau Range labordia, is a species of flowering plant in the Loganiaceae family. It is endemic to lowland tropical moist forests in Hawaiʻi, and is threatened by habitat loss. Like other labordias, this plant is known as Kamakahala.
Geniostoma cyrtandrae faces severe threats from habitat destruction due to agricultural expansion and urban development across its limited Hawaiian range. Invasive plant species compete directly with this endemic shrub, altering soil chemistry and light availability in its native forest understory. The species' extremely restricted distribution makes entire populations vulnerable to single catastrophic events such as landslides or severe storms.
Habitat
This endemic Hawaiian shrub inhabits mesic to wet forest understories at mid-elevations, typically growing in shaded areas beneath native canopy trees. It requires well-drained volcanic soils and consistent moisture levels found in Hawaii's native forest ecosystems.
Other threatened species in LOGANIACEAE
Threatened in United States
Frequently asked questions
Why is Geniostoma cyrtandrae classified as Critically Endangered?
Where does Geniostoma cyrtandrae live?
What are the main threats to Geniostoma cyrtandrae?
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