There’s an interesting paper that was just accepted in Global Change Biology that tested the potential impact of climate change on the Eurasian and Mediterranean haplotype of Phragmites australis. They simulated the effects of increased temperature and CO2 on growth and interactions with soil salinity. They showed both increased growth and increased salt tolerance under future climate conditions. Just another example of complex ecosystem changes we might be seeing in the future.
Increased invasive potential of nonnative Phragmites australis: elevated CO2 and temperature alleviate salinity effects on photosynthesis and growth