Uvularia

1. Leaves perfoliate, finely puberulent (rarely almost glabrous) and usually light or dark green but not glaucous beneath; rhizome short with many crowded roots; mature capsule less than 14 (usually 8–10) mm long.

U. grandiflora

1. Leaves sessile, glaucous but glabrous beneath; rhizome elongate, bearing scattered small roots; mature capsule over 15 mm long.

U. sessilifolia

All species found in Uvularia

Uvularia grandifloraBELLWORT 
Uvularia sessilifoliaMERRYBELLS 

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 24, 2017. http://michiganflora.net/genus.aspx?id=Uvularia.