Ludwigia x lacustris is a very rare natural hybrid of L. brevipes and L. palustris. It is found in some locations in the east and south-east of the USA. As aquarium plant, this narrow-leaved Ludwigia is not very well-known yet.
Curiously, some of the areas where L. x lacustris occurs are outside the distribution area of L. brevipes, which is mainly found in the south-east of Virginia as well as in North and South Carolina. Where L. x lacustris occurs in nature it grows abundantly and sometimes even outpopulates its parent species.
- To be continued -
<a href="http://www.flowgrow.de/db/aquaticplants/ludwigia-lacustris" target="_blank"><img alt="Ludwigia × lacustris" title="Ludwigia × lacustris" src="http://www.flowgrow.de/db/widget/aquaticplants/ludwigia-lacustris" /></a>
[widget=aquaticplants/ludwigia-lacustris]Ludwigia × lacustris[/widget]