Sphenopholis

Sphenopholis is a genus of North American and Hawaiian plants in the grass family. They are known generally as wedgescales. Species Sphenopholis filiformis - longleaf wedgescale - TX OK AR LA TN MS AL GA FL NC SC VA PA Sphenopholis intermedia - slender wedgescale - Canada (every province + territory except Nunavut), USA (every state except California + Hawaii) Sphenopholis interrupta - CO OK AZ NM TX LA, Baja California Sphenopholis longiflora - Texas wedgescale - TX OK AR LA Sphenopholis nitida - shiny wedgescale - Ontario, eastern half of United States Sphenopholis obtusata - prairie wedgescale - widespread in contiguous United States + southern Canada, plus Hawaii, Mexico + Hispaniola Sphenopholis × pallens - scattered locations in eastern half of USA—hybrid S. obtusata × S. pensylvanica Sphenopholis pensylvanica - swamp wedgescale - eastern half of USA...read more on Wikipedia.