Possibly Potamogeton tricarinatus - see ref below - but was photographed at Hidden Secret Rockhole in the Doctor Hicks Rng GVD, which is a long long way outside the known range.
Hitch-Ezy Inventor
Bushtracker
ARB CAPALABA
Edwards Tavern WODONGA Vic
DIESELHEAT
Bushtracker Owners Group Inc.
Atlas Travel Centre
SIMPLICITY AXLES
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