Tall fleabane

Family: Asteraceae
Scientific name: Conyza sumatrensis
Description: Plant Form Erect annual herb. Size Up to 2 m tall. Stem Usually unbranched below the flowerheads, densely hairy. Leaves Alternate along stems, undivided, linear or wider in end half, with toothed edges, hairy. Flowers Dome to flask-shaped daisy flowerheads up to 1 cm wide, in often narrowly pyramidal clusters. Fruit and Seeds With brownish, rough parachuting hairs about 3 mm long. Habitat Disturbed sites, roadsides, pastures, waste areas. Distinguishing Features Flaxleaf fleabane (Conyza bonariensis) is smaller and its spent flowerheads are whitish inside, and its seeds have white parachuting hairs. Larger flowers than Canadian fleabane (C. canadensis).

Example images for this weed