Aphanostephus ramosissimus is a North American species of flowering plants in the family Asteraceae, with the common name plains lazydaisy. It is native to the southwestern and south-central United States, the states of Arizona, New Mexico, Texas, and Oklahoma, as well as to central and northern Mexico as far south as Puebla and Michoacán.Biota of North America Program 2014 county distribution mapTropicos, specimen listing for Aphanostephus ramosissimus DC.
Description Aphanostephus ramosissimus is an annual herb up to 45 cm (18 inches) tall.Flora of North America Vol. 20 Page 353 Plains lazydaisy, Aphanostephus ramosissimus DC.Turner, B. L. 1984. Taxonomy of the genus Aphanostephus (Asteraceae–Astereae). Phytologia 56: 81–101. It produces multiple flowers, each containing a few dozen long, thin, white petals that radiate from a yellow central disc.
Varieties Aphanostephus ramosissimus var. humilis (Benth.) B.L.Turner & Birdsong Aphanostephus ramosissimus var. ramosus (DC.) B.L.Turner & Birdsong Aphanostephus ramosissimus var. ramosissimus
References
External links Lady Bird Johnson Wildflower Center, University of Texas SEInet Southwestern Biodiversity, Arizona Chapter Conabioi ficha informativa, Aphanostephus ramosissimus DC. in Spanish with photos Calphotos photos gallery, University of California