වල්සූරියකාන්ති/වටසූරිය[Wal-Suriyakanthi/Wata Suriya]/Wild Sunflower (Tithonia diversifolia)

 A native plant of South America and introduced to many countries including Sri Lanka as an ornamental plant and now considered as an invasive. It is a common weed along roads and on waste grounds particularly at mid elevations (1000-5000ft).