Bolboschoenus medianus (V.J.Cook) Soják

Marsh Club-rush

Cas. Nar. Mus., Odd. Prir. 141: 63 (1972) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Rhizomatous perennial. Culms 70–150 cm high, 4–5 mm diam., scabrous on the angles above. Leaves recurved above, 6–8 mm wide. Inflorescence with 4–6 branches, 2–10 cm long, bearing clusters of 1–6 spikelets; involucral bracts 15–25 cm long. Spikelets 1–1.5(–2) cm long; glumes yellow-brown, c. 7 mm long, plus awn c. 2 mm long; hypogynous bristles no more than two-thirds as long as nut, often deciduous; style 2–3-fid. Nut plano-convex or trigonous with concave faces, shining, mostly not obviously reticulate, 3–4 mm long, 2–2.5 mm diam. Flowers spring–summer.

Brid, CVU, DunT, EGL, EGU, GipP, Glep, Gold, HSF, LoM, MuF, MuM, MSB, NIS, OtP, RobP, VRiv, VVP, WaP, Wim. Also WA, NSW, ACT, Tas. New Zealand. Widespread but, except for areas surrounding Murray River in the north and far north-west, not common; occurring in shallow, often brackish water.

Source: Wilson, K.L. (1994). Cyperaceae. 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: Val Stajsic, 2018-07-31
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Cyperaceae
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Bolboschoenus medianus in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Bolboschoenus medianus in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Glenelg Plain present native
Bridgewater present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Scroll Belt 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-Southern Fall present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory