Amphibromus macrorhinus S.W.L.Jacobs & Lapinpuro

Long-nosed Swamp Wallaby-grass

Telopea 2: 723 (1986) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Slender tufted perennial; culms to 1 m high. Leaves glabrous, smooth or slightly scabrous; blade flat to folded, to 30 cm long and 1.5–4 mm wide; ligule acute, 6–17 mm long. Inflorescence a slender to spreading panicle, to 40 cm long. Spikelets 4–6-flowered, 10–19 mm long (excluding awns), green or purplislh; glumes acute, the lower 3-nerved, 4–6.5 mm long, the upper 5-nerved, 4–8 mm long; lemma 5.3–9 mm long, densely scabrous in the lower half, apical teeth 4, virtually equal or the outer pair shorter, 0.5–1.5 mm long; awn 10–20 mm long, inserted 50–60% of the lemma length from the apex, column 3.5–7 mm long; palea slightly shorter than lemma. Flowers Oct.–Dec.

CVU, DunT, EGL, GipP, Gold, GGr, HNF, HSF, LoM, MuF, NIS, VRiv, VVP, Wim. Also WA, SA, NSW, Tas. Scattered through Victoria, except mallee and mountain areas. Largely coextensive with A. nervosus, largely replacing it in the Euroa-Wangaratta area but generally less common.

In most features resembling A. nervosus but usually a smaller plant with inflorescence branches often spreading and spikelets often slightly longer. Occasional specimens appear intermediate between the two species.

Source: Walsh, N.G. (1994). Poaceae. 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: Neville Walsh, 2015-07-02
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Lilianae
order Poales
family Poaceae
genus Amphibromus
Higher taxa


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

State distribution

Distribution map
Western Australia
South Australia
New South Wales