Erigeron bellidiastrum

Erigeron bellidiastrum, the western daisy fleabane or sand fleabane, is a species of fleabane in the family Asteraceae. It is native to northern Mexico and the western and central United States.
Erigeron bellidiastrum is an annual or biennial herb up to 50 cm tall, with a taproot. It produces flower heads in groups of 1–12 on the ends of branches. Each head can have up to 70 white ray florets surrounding many small disc florets.
;Varieties

Erigeron bellidiastrum var. arenarius.
Erigeron bellidiastrum var. bellidiastrum - Arizona, Colorado, Kansas, Montana, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, Utah, Wyoming
Erigeron bellidiastrum var. robustus Cronquist - Colorado, Kansas, Nebraska, New Mexico, Oklahoma, Texas