Erigeron aequifolius is a rare species of flowering plant in the family Asteraceae known by the common names Hall's daisy and Hall's fleabane.Calflora taxon report, University of California, Erigeron aequifolius H.M. Hall Hall's daisy, Hall's fleabane
Distribution It is endemic to California, where it is known from fewer than 20 locations in the southern High Sierra Nevada of Mariposa, Fresno, Kern, and Tulare Counties. It grows in woodlands and coniferous forests.Biota of North America Program 2014 county distribution map
Description Erigeron aequifolius is a small perennial herb growing a hairy, glandular stem up to about 20 centimeters (8 inches) tall from a woody caudex and taproot. The small leaves are equal in size and evenly spaced along the stem. The inflorescence is a usually solitary flower head at the tip of the stem. The head contains many yellow disc florets surrounded by a fringe of ray florets which are white when new and turn blue as they dry. The fruit is a tiny achene with a pappus of bristles.Flora of North America, Erigeron aequifolius H. M. Hall, Univ. Calif. Publ. Bot. 6: 174. 1915. Hall’s fleabane Hall, Harvey Monroe 1915. University of California Publications in Botany 6(7): 174 description in Latin, commentary in English
References
External links Jepson Manual Treatment - Erigeron aequifolius United States Department of Agriculture Plants Profile