Is this some kind of trick question? Because the right answer is WRITTEN on
the tank in the pic! :-) Rotala macranda, just like the text there says.

Liisa

First I should admit I did not see the written markings, and that was
embarrassing.

Second I have 4 bunch of R. macranda in my tank and nothing is similar
to the one on the picture. Mine is here
http://www.dlink.org/aqua/image/rotala_mac.jpg

Anyway Thank You

Dominic (At Work)