[jerime]

What is the red one please?

Thanks.

 

[aquaverde]

Looks like a Ludwigia repens cross, maybe with arcuata, or repens x repens. A guess.

 

[jerime]

Thanks.
It's supposed to be Ludwigia arcuata but it's something different or arcuata something as you said....

 

[Error]

Looks like L. repens x L. arcuata to me.

 

[bharada]

Looks like L. repens x L. arcuata to me.

Yup. AZ Aquatic Gardens calls it L. repens 'narrowleaf'.

 

[Sue]

Looks an awful lot like ludwigia palustris which grows wild over much of the country. I've got huge mats of it growing out back in the brook and a bit in my tank.

http://www.aquaticplantcentral.com/forum/plant_data/details.php?id=121&category=genus&spec=Ludwigia

 

[Cavan Allen]

I'm also going with repens x arcuata. Another possibility is a narrow leaf repens. I'm still not satisfied as to which of those is which.

The leaves are much too long and narrow to be palustris. Also not wavy enough. Letting it grow out of the water to flower is, as always, helpful.

 

[jerime]

In anothet forum, the guys are saying it might be a variant of Hygrophila polysperma, and someone posted a picture :

What do you think?

 

[Cavan Allen]

The above picture is Hygrophila polysperma, but your plant is definitely a Ludwigia. No question about it.

 

[jerime]

I think so too...
Thanks

 

[freshreef]

friend the pic below is arcuata x repens right?

jerime plant and the above plant are deffenetly not the same plant - jerime plant looks like palustris or something else (ive seen it "live")

jerime could u put another pic please for better id?

 

[tsunami]

That is Ludwigia repens 'Narrow' .

This is Ludwigia repens x arcuata:

Carlos

 

[jerime]

So this plant is Ludwigia repens x arcuata ?

Thanks