Flaveria mcdougallii is a very rare North American plant species of Flaveria within the family Asteraceae. It has been found in 4 locations in the Grand Canyon in northwestern Arizona in the southwestern United States, in Mohave County and Coconino County. Many of the populations lie inside Grand Canyon National Park, others within the Hualapai Indian Reservation.Biota of North America Program 2014 county distribution mapSEINet, Southwestern Biodiversity, Arizona chapter, Flaveria mcdougallii Theroux, Pinkava & D.J. Keil description, photos of herbarium specimens, distribution mapA Field Guide to the Special Status Plants of Grand Canyon National Park
Flaveria mcdougallii grows primarily near alkaline springs and springs along the Colorado River. It is a hairless subshrub up to tall. One plant can sometimes produce 200 or more small yellow flower heads in a flat-topped cluster. Each head contains 2–6 disc flowers but no ray flowers.Powell, Albert Michael. 1979. Annals of the Missouri Botanical Garden 65(2): 633–634 description and commentary in English, distribution map on page 610Flora of North America, Flaveria mcdougallii M. E. Theroux, Pinkava & D. J. Keil, 1977. Michael E. Theroux, Donald J. Pinkava and David J. Keil. 1977. A new species of Flaveria (compositae: flaveriinae) from Grand Canyon, Arizona. Madroño 24:13–17
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