Bergia trimera Fisch. & C.A.Mey.

Small Water-fire

Linnaea 10: 74 (1835) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: vulnerable (v)

Prostrate or procumbent annual, forming loose mats to c. 20 cm diam.; stems sparsely septate-hairy. Leaves subsessile, ovate, obovate or oblanceolate, 5–20 mm long, 2–6 mm wide, often glaucous; margins distantly serrulate. Flowers sessile to shortly pedicellate, densely clustered in axils; sepals 3(–4), narrowly ovate, c. 1 mm long, midrib slightly thickened, green, margins thin, entire or somewhat toothed toward apex, white or purplish; petals slightly longer and broader than sepals, pink, membranous; stamens and styles as many as other segments. Capsule globular, purplish-brown, slightly exceeding perianth. Seeds cylindric, c. 0.4 mm long, patterned by raised reticulations. Flowers mainly Jan.–Apr. (after summer floods).

MuF, MSB, RobP, VRiv. All mainland States. Also India, Sri Lanka. Rare in Victoria, confined to floodplains of the Murray River in the far northwest (Red Cliffs, Lake Wallawalla), and areas prone to inundation near Kerang. Rarely observed in the absence of recent floods. First collected in Victoria in 1982.

Source: Walsh, N.G. (1996). Elatinaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 3, Dicotyledons Winteraceae to Myrtaceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-07-27
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Rosanae
order Malpighiales
family Elatinaceae
genus Bergia
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Bergia trimera in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Bergia trimera in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Riverina present native
Murray Scroll Belt present native
Robinvale Plains present native
Murray Fans present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales