New Mexico feathergrass growing on the benches immediately above Pueblo Bonito, Chaco Culture National Historical Park, San Juan County, New Mexico. The relatively few needlegrass plants in this area with mature brown fruiting lemmas had widely divergent awn hairs or lemmas with a plumose awn, which are distinguishing of New Mexico feathergrass.
Growing at drainage-end of cattle trough near standing water/saturated soils. Likely need better images.