Muhlenbergia schreberi Gmel. Nimblewill Habit: Perennial, usually rooting at the lower nodes, but not forming definite creeping rhizomes. Culms: Slender, erect or ascending from a decumbent base, usually rooting at the lower nodes, diffusely much branched, flowering branches 10-30 cm. tall. Blades: Flat, 3-9 cm. long, 2-4 mm. wide, slightly narrowed towards the base, spreading or ascending, scabrous. Ligule: Membranous, fringed, very short. Inflorescence: Panicles numerous, terminal and axillary, slender, 5-15 cm. long, 2-5 mm. thick, lax, rather loosely flowered, axillary panicles usually included at the base. Spikelets: Spikelets (excluding the awn) 2 mm. long, 1-flowered, flower perfect, narrow, appressed on short scabrous pedicels usually 1-2 mm. long, rachilla disarticulating above the glumes. Glumes: First glume obsolete or nearly so, the second minute, 0.1-0.2 mm. long, rounded or truncate, less than one fourth as long as the lemma. Lemmas: Narrow, membranous, 3-nerved, sparsely hairy below, very scabrous especially on the nerves and margins, exclusive of the awn about 2 mm. long, tapering into a slender scabrous, straight awn 2-5 mm. long. Palea: Thin, nearly as long as its lemma, acute, lanceolate. Habit: Damp, shady places. August-September. Kansas Range: East half. Remarks: In spring and early summer the stems short and erect with spreading blades. Synonyms: Muhlenbergia palustris Scribn. Muhlenbergia schreberi J.F. Gmel. var. palustris (Scribn.) Scribn.