EN

Bidens australis

Declining

Overview

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

Bidens australis faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development across its limited range. Invasive plant species compete directly with this endemic species for resources, while altered fire regimes and grazing pressure from livestock further degrade its specialized habitat requirements. Climate change poses an additional threat through shifting precipitation patterns that affect the wetland margins where this species typically establishes.

Threat summary

Habitat

Bidens australis typically inhabits wetland margins, seasonal pools, and moist grasslands in temperate regions. The species shows preference for areas with fluctuating water levels and disturbed soils that provide optimal germination conditions.

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 australis classified as Endangered?
Bidens australis 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. Bidens australis faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development across its limited range. Invasive plant species compete directly with this endemic species for resources, while altered fire regimes and grazing pressure from livestock further degrade its specialized habitat requirements. Climate change poses an additional threat through shifting precipitation patterns that affect the wetland margins where this species typically establishes.
Where does Bidens australis live?
Bidens australis 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 australis?
The main threats to Bidens australis 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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