Siam weed

Family: Asteraceae
Scientific name: Chromolaena odorata
Description: Plant Form: Upright thicket forming shrub Size: 1.5 to 3 m tall. Taller when climbing. Stem: Smooth, round, brittle, woody at base of trunk with age. Leaves: Soft, green, hairy, triangular, with 3 prominent veins. Flowers: Clusters of 10-35 pale pink or white tubular flowers with tassel-like protuberances. Fruit and Seeds: Brown to black 5 mm long with parachuting hairs and barbs. Habitat: Riverbanks, rainforest, waste areas, granite slopes, coastal areas. Distinguishing Features: May look like Billy goat weed (Ageratum conyzoides) while young, but develops more of a climbing or thicket habit with age. Weed Status: Priority Weed Weed Type: Environmental, Agricultural, Common Lifeform: Herbaceous

Example images for this weed