Compare to Poaceae-Panicoideae-Panicodae-Paniceae: Dichanthelium strigosum
openflower rosette grass, Open-flower Witchgrass, Soft-Tufted Panicgrass
http://www.namethatplant.net/plantdetail.shtml?plant=464
https://plants.usda.gov/core/profile?symbol...