manini

Here is a link for L. palustris. Look at photos 2 and 5. Check out the difference of the peduncle. That is where I agree with Cavan. As soon as the plant takes its submerged form I will take photos of it and you guys can compare the difference.

http://www.missouriplants.com/Greeno...tris_page.html

manini

Update....

Here are some photos of the mystery ludwigia submerged...


From left to right:L.palustris, L.'unknown' (long peduncle), L. lacrustris


Here are 2 other Ludwigia species that are questionable.

From my understanding....plants from left to right: palustris,'long peduncle',lacrustris,arcuata,sp. 'red', 'unknown', 'unknown'


Closer look at the leaves.


L.sp. 'red' in the middle of both 'unknown'


Measurement

Jeffww

That is a gorgeous ludwigia collection you have. I'm jealous lol. I'm guessing hybrid but since I know nothing of nomenclature I will call this Ludwigia lacustris 'inbred'