Thank you Janet! Mauro Peixoto's picture and the other from the first link are a perfect match in every sense!
Very interesting info that it seems to be more competitive when having a higher dose of salt!
The field was actually very close by the sea, I had to pass by it to get there!!
I'm glad I can give it a definite name now, it is Crinum americanum!
I'm also pleased all of yours are doing well!