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Erigeron davisii is a North American species of flowering plant in the daisy family known by the common name Davis’s fleabane . It has been found only in Idaho and in northeastern Oregon.
Erigeron davisii is a perennial herb up to 30 cm (12 inches) tall. Each branch generally has only one flower head, with 50–80 white ray florets and numerous yellow disc florets.
References
Erigeron davisii Wikipedia(Text) CC BY-SA