Perennial Sow-thistle

Family: Asteraceae
Scientific name: Sonchus arvensis
Description: Plant Form Erect herb Size 50-150 cm tall Stem Finely ribbed and hollow Leaves Lance-shaped, growing alternatingly up stems and variable in size (15-35 cm long and 3-10 cm wide) and shape, edges with coarse teeth, bent downwards, no leaf stems, leaves sheath around stem Flowers Branched flower stem contains many 4-5 cm wide yellow flowers Fruit and Seeds With 1.0-1.4 cm long feathery hairs, seeds ribbed Habitat Moist sites, disturbed areas, woodland, and pastures Weed Status: Other Weed Weed Type: Environmental, Agricultural Lifeform: Herbaceous

Example images for this weed