NIMBLEWILL, Muhlenbergia schreberi J. F. Gmel. 1, plant showing rooting at lower nodes; 2, spikelet. Perennial, reproducing by seed and numerous fine stolons. Stems not hairy, very slender, spreading, branching, decumbent at base and rooting at lower nodes, forming dense patches 1 foot (30 cm) or more in diameter from a single plant. Leaf blades flat, short (1/2 to 2 inches or 1.3 to 5 cm), not hairy except for occasional marginal hairs at the base; ligule short, membranous; collar not hairy, leaf sheath loose, not hairy. Inflorescence a fine slender panicle, 2 to 6 inches (5 to 15 cm) long, appearing in September. Seeds very small, about the size of redtop. Found generally in lawns, fence rows, and noncultivated areas. Often confused with crabgrass and Bermudagrass in lawns.