Juncus radula Buchenau

Hoary Rush

Krit. Verz. Juncac. 38 (1880) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Tufted perennial with horizontal or ascending rhizomes. Cataphylls tight or loose, pale to medium brown or pale pinkish-brown towards the base, to c. 13 cm long. Culms erect, ± minutely scabrous, dull green to blue-green, 20–60 cm high and 0.5–2.3 mm diam.; striations 12–30, strongly raised and easily counted; pith continuous and cobwebby; stomates superficial. Inflorescence open, flowers evenly scattered (rarely congested) on erect or slightly curved, minutely scabrous branches; primary bract minutely scabrous, continuous with culm, to c. 30 cm long; prophylls present. Tepals ± minutely scabrous on the green or brown tinged midrib, margins translucent or tinged brown, later becoming stamineous, (3.0–)3.3–4.5 mm long; stamens 6 (rarely 3), anthers 0.6–1.0 mm long. Capsules stramineous, with a ± darker obtuse apex, shorter than, equal to, or rarely longer than the tepals, 2.5–4.0 mm long. Flowers mostly Oct.–Dec., seeds shed mostly Nov.–Feb.

CVU, DunT, GipP, Gold, GGr, HSF, LoM, MuF, MuM, NIS, OtP, VAlp, VRiv, VVP, Wim. Also WA, SA, Qld, NSW. In low-rainfall areas, occuring in depressions and along seasonal drainage lines in a range of vegetation communities.

Juncus radula resembles J. remotiflorus and open-inflorescence forms of J. subsecundus and J. flavidus, but differs from these species in the continuous cobwebby pith, culm striations and minutely scabrous upper part of the culms and primary bracts. Known to hybridize with J. subsecundus.

Source: Albrecht, D.E. (1994). Juncus. 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, 2019-03-04
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Juncaceae
genus Juncus
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <http://avh.chah.org.au>. Find Juncus radula in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Juncus radula in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Victorian Riverina present native
Murray Fans present native
Gippsland Plain present native
Otway Plain present native
Goldfields present native
Central Victorian Uplands present native
Greater Grampians present native
Dundas Tablelands present native
Northern Inland Slopes present native
Highlands-Southern Fall present native
Victorian Alps present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales