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Brooks Rownd | profile | all galleries >> Hawai'i >> Hawaiian Flora and Fauna >> Hawaiian Plants >> Asteraceae (Sunflower Family) - Silverswords, Greenswords, Na'ena'e, Ko'oko'olau, etc >> Ko'oko'olau tree view | thumbnails | slideshow

Ko'oko'olau

The 19 endemic species of Bidens in the Hawaiian islands are a single adaptive radiation, and all are interfertile. IIRC, they are also interfertile with some North American species. A characteristic which helps idenfity native bidens species is their yellow flowers, whereas aliens usually have white flowers.


The native bidens on Hawai'i are b. campylotheca, b. hawaiensis, b. hillebrandiana, b. menziesii and b. micrantha.

Ko'oko'olau
Ko'oko'olau
Ko'oko'olau
Ko'oko'olau
Ko'oko'olau Flower
Ko'oko'olau Flower
Bidens Seeds
Bidens Seeds
Bidens Menziesii
Bidens Menziesii
B. Menziesii
B. Menziesii
B. Menziesii Flowers
B. Menziesii Flowers
Alien Bidens (B. Alba?)
Alien Bidens (B. Alba?)