Lanceleaf Ragweed

(Ambrosia bidentata)

Characteristics

Seedling	Leaves	Flowers	Fruit

Growing habit: Erect, much-branched, warm-season annual

Root anatomy: Fibrous roots from taproot

Leaf anatomy: Sometimes opposite but usually alternately arranged, simple, lanceolate, unlobed or with two triangular lobes at leaf base, pubescent with sparse trichomes

Reproduction: Inflorescences with male heads in spikes at ends of branches and female heads in axillary clusters; achene fruit

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