Alternanthera pungens Kunth

Khaki Weed

Nov. Gen. Sp. 2: 206 (1818) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Prostrate perennial with pubescent stems spreading to c. 50 cm long. Leaves broadly obovate to circular, mostly 1.5–3 cm long, 8–15 mm wide, pubescent toward base on lower surface; margins entire; apex often shortly mucronate. Flowers in axillary ovoid spikes, 6–10 mm long; bracts and bracteoles 2–3 mm long; perianth 3.5–5 mm long, the 2 outer abaxial tepals acuminate, spine-tipped, longer than adaxial tepal and inner 2 tepals, all with small woolly tufts toward base; anthers 3–5, staminal cup irregularly toothed at summit, anthers 3–5. Fruit broadly ovate, c. 1.3 mm long. Flowers Mar.–Apr.

*EGU, *GipP, *MuM, *Wim. Naturalised all mainland States. Native to South America. Collected from a railyard at Donald in 1967, and at Irymple near Mildura where first noted in 1970 and since collected from scattered localities elsewhere throughout the state. A troublesome weed in lawns etc. in other States.

Source: Walsh, N.G. (1996). Amaranthaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-04-18
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Caryophyllanae
family Amaranthaceae
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Alternanthera pungens in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Alternanthera pungens in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present naturalised
Wimmera present naturalised
Gippsland Plain present naturalised
East Gippsland Uplands present naturalised

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales
Australian Capital Territory