Spiny Sowthistle

(Sonchus asper)

Characteristics

Seedling	Leaves	Flowers	Fruit

Growing habits: Erect, cool-season annual herb

Root anatomy: Fibrous from short taproot

Leaf anatomy: Alternate, lanceolate to oblanceolate, lower leaves deeply lobed, more irregularly toothed & prickly near apex

Reproduction: Numerous small heads, ray florets bright yellow

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