Potamogeton perfoliatus L.

Perfoliate Pondweed

Sp. Pl. 126 (1753) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Threat status:Victoria: data deficient (k)

Submerged herb, with branches terete, up to c. 2 m long. Leaf sheath free, up to 1 cm long, not persistent; ligule absent. Leaves sessile, basally clasping branch; lamina ovate to circular, 1–5(–7)cm long, 1–3(–4)cm wide, thin and translucent; base cordate; margin mostly undulate; apex obtuse; 9–21 principal longitudinal veins. Inflorescence c. 8–15-flowered. Infructescence 1–2 cm long. Fruiting carpels 2.5–3 mm long (including distal point), smooth or very obscurely keeled dorsally with 2 faint lateral ridges, distally with a ± straight point c. 0.5 mm long. Flowers and fruits Dec.–May.

EGL, EGU, GipP, Glep, GGr, HSF, MuM, RobP, VVP, WaP. Occurs in flowing fresh water in creeks and rivers, on sandy, stoney or muddy substrates. Apparently tolerates brackish water and still water (Aston 1973).

The leaves may be confused with the submerged leaves of P. australiensis, P. cheesemanii, and P. sulcatus; however, the clasping leaf-bases of this species readily distinguish it from these other species.

Source: Conn, B.J. (1994). Potamogetonaceae (including Ruppiaceae). In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 2, Ferns and Allied Plants, Conifers and Monocotyledons. Inkata Press, Melbourne.
Updated by: Andre Messina, 2014-07-29
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Alismatales
genus Potamogeton
Higher taxa

Victoria

Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Potamogeton perfoliatus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Potamogeton perfoliatus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Murray Mallee present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Robinvale Plains present native
Gippsland Plain present native
Warrnambool Plain present native
Greater Grampians present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Southern Fall present native

State distribution

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