Muhlenbergia filiformis (Thurb.), Pullup Muhly Habit: Tufted leafy annual, rather soft and lax. Culms: Filiform, 5-15 cm. tall or more, smooth, erect or somewhat spreading, with short lower internodes. Blades: Flat, 1-4 cm. long, 1-2 mm. broad, scabrous on margins and nerves above. Ligule: About 2 mm. long. Inflorescence: A few-flowered, narrow, contracted, interrupted panicle 2-5 cm. long, 2-4 mm. thick. Spikelets: 1-flowered, flower perfect, on short thick pedicels, disarticulating above the glumes. Glumes: About 1 mm. long, ovate, persistent, keeled, acute. Lemmas: Lanceolate, firm-membranous, 3-nerved, acute, mucronate, minutely pubescent, scaberulous at tip, about 2 mm. long. Palea: Thin, subequal. Fruit: Grain closely enveloped by the lemma. Habitat: Open woods and mountain meadows. August-September. Kansas Range: Finney county. Synonyms: Muhlenbergia filiformis (Thurb. ex S. Wats.) Rydb. var. fortis E.H. Kelso Muhlenbergia idahoensis St. John Muhlenbergia simplex (Scribn.) Rydb.