Oligochaeta is a genus of four species of plants in the daisy family Asteraceae. It can be distinguished from other genera by its pollen, and forms the Rhaponticum group of about 40 species along with Rhaponticum (25 species), Acroptilon (two species), Callicephalus (one species), Leuzea (one species), Myopordon (five species), and Ochrocephala.

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