Cocklebur

(Xanthium strumarium)

Characteristics

Seedling	Leaf & Fruit	Flowers

Growing habits: Erect, coarse, summer annual herb

Root anatomy: Fibrous roots from a freely branched taproot

Leaf anatomy: Leaves alternate, simple, triangular-ovate, margins irregularly lobed w/3-5 partitions

Reproduction: Inflorescences are heads terminal on short axillary branches, male heads rounded at ends of branches, female heads below male florets; produce achene fruits when pollenated, brown/black in color at maturity, covered in hooked barbs

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