In one of my aquariums I have two spieces of Echinodorus that looks alike but not identical.
The upper leaf is from the plant to the right, the lower leaf is from the plant to the left.
The Ech. to the right was planted about a month ago and has recently produced a runner with adventiveplants, the Ech. to the left was planted in october 2007 and haven´t produced any runners during the time I´ve had it.
Both plants are bought as Ech. bleheri but as far as I can see one of them is another spicies. Can anyone help me to ID them?

The upper leaf is from the plant to the right, the lower leaf is from the plant to the left.


The Ech. to the right was planted about a month ago and has recently produced a runner with adventiveplants, the Ech. to the left was planted in october 2007 and haven´t produced any runners during the time I´ve had it.

Both plants are bought as Ech. bleheri but as far as I can see one of them is another spicies. Can anyone help me to ID them?