Marvel Grass or Diaz Bluestem or Sheda Grass or Santa Barbara Grass * Vleivingergras * Dichanthium Annulatum var. Papillosum

https://www.inaturalist.org/taxa/598699-Dichanthium-annulatum-papillosum/browse_photos

Sources:

(*) https://www.inaturalist.org/taxa/598699-Dichanthium-annulatum-papillosum
(*) https://en.wikipedia.org/wiki/Dichanthium_annulatum