Ludwigia palustris (L.) Elliott

Marsh Ludwigia

Sketch Bot. S. Carolina 1: 211 (1817) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Naturalised

Procumbent or ascending glabrous perennial herb; stems branched, floating, to 50 cm long, rooting at nodes. Leaves opposite, broadly elliptic to more or less ovate, 0.5–2.5 cm long, 3–17 mm wide, entire; petiole 2–25 mm long. Flowers sessile, solitary or often paired in upper leaf axils; bracteoles minute, often caducous; sepals 4, green, c. 1 mm long, deltoid, acute; petals absent; stamens 4; ovary 4-celled. Fruit a 4-angled elongate-globose capsule, 2–5 mm long, readily and irregularly dehiscent; seeds free. Flowers mostly Dec.–May.

*EGL, *EGU, *GipP, *HNF, *MuF, *NIS, *VRiv. Also naturalised NSW, the Pacific region. Native through much of the Northern Hemisphere and Africa. In Victoria, confined to stream and lake margins mostly along the Murray River system upstream from about Barmah and also along the Mitchell River and its tributaries.

Source: Jeanes, J.A. (1996). Onagraceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Daniel Ohlsen, 2017-06-14
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Myrtales
family Onagraceae
genus Ludwigia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Ludwigia palustris in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Ludwigia palustris in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Riverina present naturalised
Murray Fans present naturalised
Gippsland Plain present naturalised
Northern Inland Slopes present naturalised
East Gippsland Lowlands present naturalised
East Gippsland Uplands present naturalised
Highlands-Northern Fall present naturalised

State distribution

Distribution map
South Australia
New South Wales