Potamogeton cheesemanii A.Benn.

J. Bot. 21: 66 (1883) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Emergent herb; stem erect; branches flattened, up to c. 2 m long. Leaf sheath free, up to 4 cm long, soon torn; ligule absent. Submerged leaves different from emergent ones. Submerged leaves thin and translucent, sessile or very shortly petiolate; lamina lanceolate to elliptic, 5–10 cm long, 0.5–2.5 cm wide; base rounded to gradually tapered; margin flat or slightly undulate; apex obtuse to tapering; 5–12 principal longitudinal veins, with finer transverse secondary veins; distal submerged leaves more like emergent leaves, but with petiole much longer than for emergent leaves. Emergent leaves floating, ± thick and leathery, petiolate; lamina ovate to lanceolate, 1.5–5.0 cm long, 1.5–3.5 cm wide, dull; base rounded to cordate; apex obtuse to apiculate; margin flat; 10–20 principal longitudinal veins, with transverse secondary veins indistinct. Inflorescence c. 12–24 flowered. Infructescence 1.0–2.5 cm long (excluding non-fruiting part of axis). Fruiting carpels 2–3 mm long (including distal point), dorsal surface with a ± prominent, smooth to crenulate  keel and 2 smooth lateral ridges that are sometimes low or not developed, distally with a ± straight to curved point up to c. 0.7 mm long. Flowers and fruits Sep.–Apr.

CVU, DunT, EGL, EGU, GipP, Glep, Gold, HNF, LoM, MonT, MuF, MuM, NIS, OtP, RobP, SnM, Strz, VRiv, VVP, WaP, Wim. Occurs in rivers, creeks, tarns and lagoons, on muddy substrates.

This species was previously treated as P. tricarinatus form II and form III. See notes under P. sulcatus and P. drummondii.

Created by: Andre Messina, 2014-08-04
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 cheesemanii in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Potamogeton cheesemanii in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Robinvale Plains present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Warrnambool Plain present native
Goldfields present native
Central Victorian Uplands present native
Dundas Tablelands present native
Northern Inland Slopes present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Northern Fall present native
Strzelecki Ranges present native
Monaro Tablelands present native
Snowy Mountains present native

State distribution

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