Isocoma humilis, common names Zion goldenbush or Zion jimmyweed, is a rare North American plant species in the family Asteraceae. It has been found only in southern Utah in the United States. Some of the populations lie inside Zion National Park.Biota of North America Program 2014 county distribution map
Isocoma humilis is a low, branching shrub rarely more than tall. Herbage is covered with copious hairs. Leaves are narrow, oblong to oblanceolate, up to long, deeply lobed. Each flower head is up to wide (fairly large for the genus) and has 19-28 disc flowers but no ray flowers.Flora of North America, Isocoma humilis G. L. Nesom, 1991. Zion jimmyweed Nesom, G.L. 1991. Taxonomy of Isocoma (Compositae: Astereae). Phytologia 70(2): 69–114 description of I. humilis on pages 92-93, distribution map on page 73
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