Switchgrass (Panicum virgatum)

2015-5-10 Patuxent Research Refuge, Anne Arundel County, Laurel, MD
-as marked by staked name plate
Last year's old with new Spring growth.

https://www.minnesotawildflowers.info/grass-sedge-rush/switchgrass
http://www.kansasnativeplants.com/guide/plant_detail.php?plnt_id=461
http://www.namethatplant.net/plantdetail.shtml?plant=1026