Bidens populifolia

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Oʻahu Beggarticks
Conservation status
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
(unranked) Euasterids I
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Heliantheae
Subtribe: Coreopsidinae
Genus: Bidens
Species: B. populifolia
Binomial name
Bidens populifolia
Sherff

The Oʻahu Beggarticks or Poplar-leaved Bidens (Bidens populifolia) is a species of flowering plant in the family Asteraceae. It belongs to the genus Bidens, collectively called kokoʻolau or koʻokoʻolau in the Hawaiian language. It is found only in the Koʻolau Range on Oʻahu.

Its natural habitat are subtropical or tropical moist montane forests, subtropical or tropical moist shrubland, and rocky areas. It is threatened by habitat loss due to the spread of invasive weeds and overgrazing.

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