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.
Lovells Springs P/L
ABCO Caravan Services
Edwards Tavern WODONGA Vic
Bushtracker
ARB CAPALABA
DIESELHEAT
Atlas Travel Centre
Bushtracker Owners Group Inc.
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