Isoetes drummondii A.Braun

Plain Quillwort

Monatsber. Konigl. Preuss. Akad. Wiss. Berlin 1863: 593 (1864) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Leaves erect or spreading, narrowly cylindric and tapering, 3-20 (rarely to 30) cm long; bases abruptly widened, flattened, overlapping, spoon-shaped, lateral margins pale and papery. Mega-sporangia broadly elliptical (orbicular in outer leaves, more elongate in inner leaves), 6-10 mm long, wall liver-brown and shiny when mature; megaspores 50-200 per sporangium (in outer leaves), white, globular or flattened (and sometimes joined together to be irregular dumb-bell shaped), tuberculate. Microsporangia present or absent.

CVU, DunT, EGL, GipP, Glep, Gold, GGr, HNF, LoM, MuF, NIS, OtP, VRiv, VVP, WaP, Wim.

2 subspecies of I. drummondii, separated morphologically and cytologically, are found in Victoria. Both varieties grow in mud or temporary water in winter and spring, and are found mostly in the western half of Victoria.

Source: Entwisle, T.J. (1994). Ferns and allied plants (Psilophyta, Lycopodiophyta, Polypodiophyta). 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: Daniel Ohlsen, 2017-06-15
Distribution map


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Isoetes drummondii in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Isoetes drummondii in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Wimmera present native
Glenelg Plain present native
Victorian Volcanic Plain present native
Victorian Riverina 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
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
East Gippsland Lowlands present native
Highlands-Northern Fall present native

State distribution

Distribution map
Western Australia
Northern Territory
South Australia
New South Wales