Wild Mustard

(Sinapis arvensis)

Characteristics

Seedling	Leaves	Flowers	Fruit

Growing habits: Erect winter or summer annual herb

Root anatomy: Fibrous roots from taproot

Leaf anatomy: Leaves alternate, obovate, lanceolate, lyrate-pinnatifid or undivided, lower leaves lobed w/toothed margins, upper leaves oblong to ovate

Reproduction: Flowers in conspicuous clusters at branch terminals, yellow, 4 petals

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