Knotroot Foxtail

(Setaria parviflora)

Characteristics

Leaves	Ligule	Flower

Growing habits: Erect or spreading perennial

Root anatomy: Fibrous roots from short, knotty rhizomes

Leaf anatomy: Leaves somewhat pubescent at mouth only, sheaths usually keeled and glabrous, membranous fringed ligule

Reproduction: Inflorescences densely flowered panicles, cylindrical, yellow or purple, up to 12 bristles per spikelet

^{References: Weeds of the South by Charles T. Bryson and Michael S. DeFelice}