Erigeron saxatilis is a rare North American species of flowering plant in the family Asteraceae known by the common name rock fleabane. It has been found only in northern Arizona, in Yavapai and Coconino Counties north of the Mogollon Rim.Biota of North America Program 2014 county distribution map
Erigeron saxatilis grows on ledges and cracks in the walls of canyons. It is a very small perennial herb rarely more than 5 cm (2 inches) tall, forming a woody underground caudex. The inflorescence generally contains only 1 flower head per stem. Each head contains 20–29 white ray florets surrounding many yellow disc florets.Flora of North America, Erigeron saxatilis G. L. Nesom, 1990. Rock fleabane Nesom, Guy L. 1990. Phytologia 69(3): 233–234
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