Persicaria capitata (D.Don) Gross

Hairy, prostrate, spreading perennial herb. Leaves ovate to about 5 cm long, 3 cm wide, blotched reddish brown. Flowers in dense almost round heads about 1 cm wide; summer. Perianth segments pink. Nut 1.5-2 mm long, 3-angled, shiny. [Polygonum capitatum D. Don]

Himalaya

Naturalised in NSW, SA, possibly also Vic.

Source: Spencer, R. (1997). Polygonaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Caryophyllanae
order      Caryophyllales
family       Polygonaceae
genus        Persicaria (L.) Mill.