Bidens henryi
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Bidens henryi faces severe population decline primarily due to habitat destruction from agricultural expansion and urban development across its limited range in Hawaii. The species is particularly vulnerable to invasive plant species that outcompete it for resources and alter soil chemistry in its native ecosystems. Climate change poses an additional threat through altered precipitation patterns that affect the moist conditions this endemic Hawaiian plant requires for reproduction and survival.
Habitat
Bidens henryi inhabits moist to wet forests and forest margins in the Hawaiian Islands, typically growing in areas with rich volcanic soils and consistent moisture levels. The species is found at moderate elevations where it benefits from cloud forest conditions and reduced competition from lowland invasive species.