Bidens biternata (Lour.) Merr. & Sherff, Bot. Gaz. 88:293. 1929
Common weed of waste places easily distinguished by its yellow ray florets. Photographed from Morni hills on April 9, 2011
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Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089
http://people.du.ac.in/~singhg45/