What is "graphephorum"

Graphephorum is a genus of North American plants in the grass family.

1. Graphephorum melicoides (Michx.) Desv. - Ontario, Québec, New Brunswick, Nova Scotia, Newfoundland, Maine, New Hampshire, Vermont, New York, Michigan, Wisconsin
2. Graphephorum wolfii (Vasey) Coult. - British Columbia, Alberta, Saskatchewan south to California + New Mexico

see Arctophila Dupontia Hyalopoa Molinia Muhlenbergia Peyritschia Poa Scolochloa Sphenopholis Trisetum