Eragrostis eriopoda

Eragrostis eriopoda Benth. Fl.
7: 648 (1878).

Classification. (GPWG 2001) : Subfamily
Chloridoideae. Cynodonteae.

Type of Basionym or
Protologue Information
: ST: A. Cunningham s.n., Australia: N. Australia: Cygnet Bay,
N. W. coast

ST: Walcot s.n.,
Dampier's Archipelago.

Key references
(books and floras):
[1878] G.Bentham, Flora Australiensis 7 (648), [1952]
C.A.Gardner, Flora of Western Australia 1 Gramineae (122), [1981]
M.Lazarides in J.Jessop (ed)., Flora of Central Australia (457), [2002]
D.Sharp & B.K.Simon, AusGrass, Grasses of Australia, [2006]
J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (370),
[2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South

[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia  (370, fig. 299), [2008] S.W.L.Jacobs,
R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales, 4th edn

Perennial. Culms erect, 22–60 cm tall, wiry. Lateral branches simple. Ligule a
fringe of hairs, 0.6–0.7 mm long. Leaf-blades spreading, straight, involute or
convolute, 1 cm long, 2–3 mm wide.

Inflorescence compound, a panicle. Panicle linear or lanceolate or ovate, 9–20
cm long, 3–7.5 cm wide.

Spikelets sessile or pedicelled. Fertile spikelets many flowered, with at least
2 fertile florets (8–62), comprising 8–62 fertile floret(s), with diminished
florets at the apex, linear or oblong, laterally compressed, 5–30 mm long.

Glumes. Glumes
similar. Lower glume ovate, membranous, keeled, 1-keeled, 3 -nerved. Upper
glume ovate, 1.75–2 mm long, membranous, keeled, 1-keeled, 3 -nerved. Upper
glume surface asperulous.

Fertile lemma 2–3 mm long, keeled, 3 -nerved. Lemma apex muticous or mucronate.
Lodicules present. Anthers 2–3. Grain 0.75 mm long.

: Australasia.

: Western Australia, Northern Territory, South Australia,
Queensland, New South Wales.

Western Australia: Dampier. Mueller,
Canning, Carnegie, Giles, Helms, Fortescue, Ashburton, Carnarvon. Eucla. Northern Territory: Victoria
River, Barkly Tableland, Central
Australia North, Central Australia South. South
: North-western, Lake Eyre, Nullabor, Gairdner-Torrens Basin,
Flinders Ranges, Eastern, Eyre Peninsula. Queensland: Burke, Gregory North,
Maranoa, Mitchell, Warrego, Gregory South. New South Wales:
North-Western Plains, North Far Western Plains, South Far Western Plains.

Distinguishing characters include 1–3-nerved glumes; stipiate caryopsis;
bulbous woolly rootbase; closely imbricate florets usually falling entire; leaf
sheaths short relative to internodes, tight on culms, abruptly wider than
blades, with ciliate margins; pouched paleas.

widespread across the centre of Australia from Port Hedland in W.A. to
Charleville in Qld. Commonly in deep, red sands and sandy loams on sandplains,
watercourse levees, dunes and swales; also in shallow often stony or gravelly
sands or loams on sandstone, limestone and quartzite hills and ridges, in
lateritic soils and in heavy-textured red earths and clay loams.; flowers all
year round; fruits all year round.

AVH 2011



Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith