[jbrianchamberlin]

I've seen that in print a few times. What does it mean with regards to freshwater plants?

 

[dave in Iliamna]

Could it be like a strawberry plant? They send out little stems called runners. Where the runners hit the ground they take root and start a new plant.

 

[phil_pl]

This means that the pants are going to spread by sending out "runner" these are roots that will spread everywhere and then more of that plant will grow from them.

 

[Dmaaaaax]

Most freshwater "grasses" do this like dwarf sags. They grow in a bunch then they send a runner out in one direction and after about 3-4in it forms a root and begins to grow a second bunch.

This is good and bad. If it gets too overgrown and you try to pull out 1 bunch you end up pulling out 6-7 if you don't cut the runners.