Nymphoides geminata (R.Br.) Kuntze

Marshwort

Revis. Gen. Pl. 2: 429 (1891) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: rare (r)

Perennial or annual; stems to 1 m long, floating, stoloniferous, often reduced to a few cm long on stranded plants. Petioles of basal leaves 1–60 cm long; blades c. circular or very broadly ovate, entire, deeply cordate, 1–6 cm long. Flowers homostylous, in spaced pairs along a short inflorescence or the pairs loosely clustered on plants growing on mud; calyx 3–6 mm long; corolla 12–25(–33) mm diam., lobes 5(–6), with broad laciniate wings, not keeled; stigmas 2, sometimes 3. Capsule 3–6.5 mm long, c. equal to calyx; seeds globular to slightly ellipsoid-globular, somewhat laterally compressed, 0.6–1 mm long, black when mature, usually with prominent spaced obtuse tubercles, sometimes smooth; caruncle circular, pale. Flowers and fruits mostly Oct.–May.

EGL, GipP, HNF, HSF, MuF, NIS, SnM, VRiv. Also SA, Qld, NSW. New Guinea. Occurs in fresh water to 40 cm deep in ephemeral or permanent swamps, streams and rockpools, thriving on saturated soil when stranded. Mostly between Heyfield and Bairnsdale, with isolated occurrences along the Murray River and near Mt Buffalo. Altitude to c. 600 m but mostly below 100 m.

Source: Aston, H.I. (1999). Menyanthaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-08-01
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Asterales
family Menyanthaceae
genus Nymphoides
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Nymphoides geminata in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Nymphoides geminata in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Victorian Riverina present native
Murray Fans present native
Gippsland Plain present native
Northern Inland Slopes present native
East Gippsland Lowlands present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Snowy Mountains present native

State distribution

Distribution map
State
South Australia
Queensland
New South Wales
Australian Capital Territory
Victoria