Need help to identify the plant!!!

[imported_jasonc]

Can anyone recognize the plants in the picture? Please help me to identify it. Thank you.

Plant type 1

Plant type 2

Plant type 3

Close-up view of Plant type 3

All the above plants are found along the river, I heard that can be plant submerse. Already tested on the plant type 2.

[CO2]

Where are these plants from?

[FC]

Dear Jason (?),

I cannot see the picture. I also tried your pic's url but failed.

[RRG]

Those plants are interesting if it could be grown underwater, especially the Plant 1 type.

[gacp]

Except for number 2, they look like Lycopsida (non-fern pteridophytes) to me: Sellaginellales or Lycopodiacea. http://en.wikipedia.org/wiki/Lycopodiopsida

Number 2 is a Magnoliophyta (flowering plant)---reminds me of Bacopa.

[Green Baron]

All 3 are terrestrial plant. Plant 1 and 3 can probably survive underwater for a month or 2 but will eventually die. Plant 2 cannot grown udner water.