ludwigia help
 

I recently bought somethng I thnk is ludwigia. I thnk it was already half dead when I bought it. When I put it in my tank, it lost all its leaves. I was wondering if it can survive wo its leaves. The roots still look strong

If the plant lost all of its leaves and is just a stem. I would say no its pretty much dead and I would throw it away sorry.

as long as the stem is healthy (and not mushy), then it can still grow.