Is there an umbrella term for physical elements found in rivers?

Hi everyone,

I’m looking for an umbrella term that encompasses the different physical elements or structures found within river channels. I’m referring to things like gravel bars, pools, riffles, rapids, boulders, large woody debris, and similar features.

These can include both geomorphic features (e.g., bars, pools) and structural elements (e.g., wood, individual boulders), so I’m trying to find a term that broadly covers all of them.

The word 'fluvial features' or 'river(ine) features' sound appropriate, yet they're hardly used anywhere.

Any suggestions?