5. Pict. source : www.matichon.co.th (2010)
www.siangtai.com
Eichhornia crassipes, ผักตบชวา Water hyacinth
Native to S-America,
introduced from Indonesia in 1901
http://202.29.22.173/php/information2/
6. Picture source : m.dailynews.co.th
Mimosa pigra, ไมยราบยักษ์ Giant sensitive plant
Native to Central America & S-America
introduced from Indonesia in 1947