Re: What's that weed?

[Thomas Barr <tcbiii at earthlink_net>]

Smart weed, knotweed etc.
I've seen this for sale every now and then.
It can turn a nice red color but tends to get ratty. Not a bad plant but
leaves a little bit to be desired.
This line drawing might better get you an idea. Not sure if this is or is
not but it's likely close:

http://aquat1.ifas.ufl.edu/polypic.html

Look at the line drawing and note the stipules at the end of the petiole.
You will not find these on an Ammannia. Ammania has a very symmetrical
opposite leaf pattern. This plant looks alternate.
A gracilus is about 2x the size as the other A. senegalensis and is easier
to grow. Can be a fast growing weed. Color variable. Lighting can pay a role
in color(including lighting color temps, fairly unusual there) as can NO3
levels. Stems can get finger sized. Good for groups in larger tanks. Best
color IME when 6500K - 6700K bulb with low NO3's and well feed.
Regards,
Tom Barr   
 
> Picture of the plant he sent me is
> http://www.aquaticscape.com/temp/notAmmania.jpg
> 
> I'd appreiate comments from anyone who has kept Ammania gracilis.
> 
> Thanks
> 
> Ghazanfar Ghori
>