Horseweed

(Conyza canadensis)

Characteristics

Seedling	Leaves	Flowers	Fruit

Growing habits: Tall, erect coarse annual herb up to 2m tall

Root anatomy: Fibrous roots from taproot

Leaf anatomy: Starts as rosette at plant base, alternately arranged up the stem, simple, linear to oblanceolate, crowded up stem, toothed/entire margins

Reproduction: Numerous small heads arranged along elongated panicle, ray florets white/lavender in color, disk florets yellow; achene fruits

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