Leaf blades tapering or truncate-hastate at base, margins somewhat toothed or entire. Glomerules occasionally red, 3-5 mm diam., membranaceous in fruit.
'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
