CR

Bidens bipontina

Declining

Overview

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

Bidens bipontina faces severe threats from urban development and agricultural expansion across its extremely limited range in Hawaii. The species is particularly vulnerable to habitat conversion as coastal and lowland areas are developed for housing and commercial use. Invasive plant species compete directly with this native Hawaiian endemic, while altered hydrology from development disrupts the wetland conditions it requires for survival.

Threat summary

Habitat

This Hawaiian endemic inhabits coastal wetlands, mudflats, and disturbed areas near sea level. It typically grows in seasonally flooded areas and along the margins of fishponds, requiring specific moisture conditions that are increasingly rare due to development pressure.

Other threatened species in ASTERACEAE

EN

Bidens cosmoides

Declining
VU

Piptolepis monticola

Unknown
Libanothamnus parvulusCR

Libanothamnus parvulus

Declining
EN

Gynoxys neovelutina

Declining

Frequently asked questions

Why is Bidens bipontina classified as Critically Endangered?
Bidens bipontina 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. Bidens bipontina faces severe threats from urban development and agricultural expansion across its extremely limited range in Hawaii. The species is particularly vulnerable to habitat conversion as coastal and lowland areas are developed for housing and commercial use. Invasive plant species compete directly with this native Hawaiian endemic, while altered hydrology from development disrupts the wetland conditions it requires for survival.
Where does Bidens bipontina live?
Bidens bipontina 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 Bidens bipontina?
The main threats to Bidens bipontina 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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