Yes Muthu ji it is common to confuse the two. Perhaps these points should help
Thespesia ppopulnea Hibibcus tiliaceous now Talipariti tiliaceum
Stipules linear-lanceolate, 5-8 mm long Stipules foliaceous, clasping stem, 1-3 cm long
Flowers solitary axillary Flowers clustered at ends of branches
Pedicel jointed Pedicel not jointed
Epicalyx segments 3 Epicalyx cupular, 7-12 toothed
Staminal column 1 cm long Staminal column 3 cm long
Capsule 5-celled, 2-4 seeds in each cell 10 celled, seeds many
--
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/