Trisetum melicoides of Michigan Flora.

Gravelly, often marly or rocky shores, swales, openings in cedar swamps, seepy river banks, fens and fen margins; rather local. Most records from the southern half of the Lower Peninsula are old. 

See Finot et al. (2005) for the recognition of Graphephorum.This is a graceful, silvery-yellow grass of calcareous sites with arching inflorescences; very sparingly distributed in the eastern United States.