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Bidens cosmoides
Bidens cosmoides, commonly known as the cosmosflower beggarticks, is a species of flowering plant in the sunflower family. It is endemic to mixed mesic forests at elevations of 2,000–3,000 ft (610–910 m) on the island of Kauaʻi in Hawaii. This particular member of the genus Bidens is far larger than its relatives and is pollinated by birds.
Unlike its smaller relatives, collectively called kokoʻolau or koʻokoʻolau in the Hawaiian language, B. cosmoides is so conspicuous and distinct that it was given a distinct name by the locals: poʻola nui ("grand poʻola"). This refers to the fact that the leaves and habitus of B. cosmoides somewhat resemble the poʻola (Claoxylon sandwicense) but unlike that plant, poʻola nui bears spectacular yellow flowers.
Bidens acrifolia · Bidens acuticaulis · Romerillo · Kokolau · Vancouver Island beggarticks · Bearded beggarticks · Arizona beggarticks · Beck's water-marigold · Delmarva beggarticks · Bigelow's beggarticks · Spanish needles · Bidens cabopulmensis
Text excerpted from the Wikipedia article Bidens cosmoides by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
