Eragrostis reptans
Creeping love grass. Old genus = Eragrostis. Poaceae. Common in bed and shore of large pond. Photo shows female plant.
Location: John F. Burke Nature Preserve, Farmers Branch TX
From iNaturalist.org
Hard-stem lovegrassPoaceae (Grass family)Endemic to the Hawaiian Islands (Oahu, Molokai, Lnai, Maui and Hawaii Island)Photo: Near the Lnai Airport, off Kaumlapai Road, LnaiEtymologyThe Latin generic name Eragrostis comes from the Greek eros, meaning love or loving (in an erotic sense), and Agrostis, a genus of fodder grasses.nativeplants.hawaii.edu/plant/view/Eragrostis_atropioides