This native aquatic plant is commonly known as bearded knotweed.
Persicaria barbata is described as a "higher dicot" in the Polygonaceae family.
In the Queensland Nature Conservation Act it is classified as Least Concern. Under the Federal Environment Protection Biodiversity Conservation Act it is not classified.
Regarded as a wetland species in Queensland WetlandInfo.
It has been recorded in the Wide Bay district in the Queensland Herbarium Census and is listed as occurring in the Fraser Coast region in Queensland Herbarium Wildlife Online.
Reported at 0 Fraser Coast localities: .
Fraser Coast distribution based on unverified field reports.