Arnoglossum

1. Leaf blades coarsely toothed or shallowly lobed, triangular-ovate, all but the upper ones cordate, with main veins ± palmate; phyllaries not keeled.

A. atriplicifolium

1. Leaf blades entire or nearly so, unlobed, elliptic, with several prominent longitudinal veins; phyllaries prominently keeled.

A. plantagineum

All species found in Arnoglossum

Arnoglossum atriplicifoliumPALE INDIAN PLANTAIN 
Arnoglossum plantagineumTUBEROUS INDIAN PLANTAIN 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. June 22, 2017. http://michiganflora.net/genus.aspx?id=Arnoglossum.