CR

Geniostoma rapense

Declining

Overview

Geniostoma rapense is a species of plant in the Loganiaceae family. It is a shrub endemic to the island of Rapa Iti in the Tubuai Islands of French Polynesia.

Geniostoma rapense faces severe threats from habitat destruction on its native Rapa Island in French Polynesia. The species' extremely limited range makes it vulnerable to invasive plant species that alter forest composition and structure. Human activities including development and agricultural expansion continue to fragment the remaining native forest patches where this endemic shrub survives.

Threat summary

Habitat

This endemic shrub inhabits the native montane forests of Rapa Island in the Austral Islands of French Polynesia. It grows in humid forest understory environments at higher elevations where native vegetation communities remain relatively intact.

Other threatened species in LOGANIACEAE

EN

Geniostoma lydgatei

Declining
CR

Geniostoma clavatum

Declining
CR

Geniostoma triflorum

Declining
CR

Geniostoma hosakanum

Unknown

Frequently asked questions

Why is Geniostoma rapense classified as Critically Endangered?
Geniostoma rapense 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. Geniostoma rapense faces severe threats from habitat destruction on its native Rapa Island in French Polynesia. The species' extremely limited range makes it vulnerable to invasive plant species that alter forest composition and structure. Human activities including development and agricultural expansion continue to fragment the remaining native forest patches where this endemic shrub survives.
Where does Geniostoma rapense live?
Geniostoma rapense 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 Geniostoma rapense?
The main threats to Geniostoma rapense 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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