Manual of the Grasses of the United States

3-nerved Acad acuminate Agropyron Agrost Aira Amer Andropogon appressed Aristida Arizona ascending awnless Based on Agrostis Based on Panicum Based on Poa Beauv blades flat branches Bromus Calamagrostis Calif California callus Carolina Club Bul Contrib culms culms erect densely Elymus Eragrostis Fernald Festuca FIGURE flexuous floret Florida Fourn glabrous glumes glumes and floret Gram grass hairs Herb Hitchc involute Jour keel Kunth lemma ligule lower Melica Mexico Michx Muhl Muhlenbergia Nash Nees nerves nodes Nutt palea panicle panicle narrow Panicum Paspalum pedicels Perennial pilose Plant pubescent racemes rachilla rachis rhizomes Rhodora Rydb scabrous Schult Scribn second glume slender spike spikelets Sporobolus spreading Spreng sterile lemma Steud Stipa synonym Syst tall Texas Torr Torrey Bot Trin tufted Type species U. S. Dept U. S. Natl usually Vasey views of spikelet villous wide Willd