Ludwigia palustris (Europe)?

Ludwigia palustris (L.) Elliott, Sketch Bot. S. Carolina 1: 211 1817. (syn: Dantia palustris (L.) Des Moul.; Isnardia ascendens Hall ex Eaton & Wright; Isnardia nitida Poir.; Isnardia palustris L.; Isnardia palustris var. americana DC.; Jussiaea isnardia E. H. L. Krause; Ludwigia palustris var. americana (DC.) Fernald & Grisc.; Ludwigia palustris var. nana Fernald & Griscom; Ludwigia palustris var. pacifica Fernald & Griscom; Quadricosta palustris (L.) Dulac) ?;  


 
https://08511630493324166816.googlegroups.com/attach/265ea376c499c/IMG_20171010_124013229.jpg?part=0.1&view=1&vt=ANaJVrGotuiCB1nSk1BvLFa2GPSF-eg_3MbuO438fJzTGQRotgk_NaF1mGgAQuNYOa5t_8cZLbmfqr1-H3UB9Fevh5omN3Xg43nRtSrYoMxojy_QOz0q_8Q
Photo 2 : 4 posts by 1 author. Attachments (1) - 6 MB.
Sorry for mailing without any photos. Here is the one.
When and where? 
I think taken somewhere in Europe. and an aquatic plant.
Probably Ludwigia palustris 

Thanks, ... 
It is from Warsaw zoo's aquarium.


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