Selected Plants of Navajo Rangelands
(a.k.a. Blue flag, Flag lily. Liver lily)
Western blue flag, the iris species found in Navajo rangelands, is a perennial herb, usually evergreen and growing from a creeping, tuberous rhizome. Rhizomes on blue flag are between 1 to 1 1/2 inches in diameter, quite large for a native iris. The leaves are 1/8 to 3/8 inch wide, long and linear with parallel venation. They are sometimes purplish. Stems are 8 to 20 inches tall and sometimes branched. Blossoms of this iris species are pale lilac to whitish with lilac-purple veins.
The roots have been used to treat toothaches and to make a green dye.
Copyright 2018 New Mexico State University. Individual photographers retain all rights to their images. Partially funded by the Western Sustainable Agriculture Research and Education Program (westernsare.org; 435.797.2257), project EW15-023. Programs and projects supported by Western SARE are equally open to all people. NMSU is an equal opportunity/affirmative action educator and employer.