Spiny Cocklebur

(Xanthium spinosum)

Spiny cocklebur

Characteristics
Seedling Leaves Flowers Fruit
Spiny cocklebur seedling Spiny cocklebur leaf Spiny cocklebur flowers Spiny cocklebur fruit

Growing habits: Erect annual herb

Root anatomy: Fibrous roots from taproot

Leaf anatomy: Alternate, lance-shaped, irregularly toothed or lobed, downy

Reproduction: Inflorescences borne in separate male and female heads, both inconspicuous, male heads in axils of upper leaves while female heads in lower leaves; achene fruits covered in spines and hooks

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