Eriochloa pseudoacrotricha

Eriochloa pseudoacrotricha (Stapf ex
Thell.) J. M.Black. Trans. & Proc. Roy. Soc. South Australia 67: 43

Classification. (GPWG 2001) : Subfamily
Panicoideae. Paniceae.

Basionym and/or
Replacement Name:
var. pseudoacrotricha Stapf ex Thell., Viert. Nat. Ges.
64:697 (1919).

Type of Basionym or
Protologue Information
: Australia: Coll? (K holo).

Key references
(books and floras):
[1810]. R.Brown, Prodromus (188 as Milium
), [1952] C.A.Gardner, Flora of Western Australia 1 Gramineae
(232), [1981] M.Lazarides in J.Jessop (ed)., Flora of Central Australia
(478), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of Australia,
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia
(454), [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New
South Wales

[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (233,
Pl. 69), [1984] N.T.Burbidge. rev. S.W.L.Jacobs, Australian Grasses  (139), [2006] J.Jessop, G.R.M.Dashorst,
F.M.James, Grasses of South Australia  (454, fig. 386), [2008] S.W.L.Jacobs,
R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales, 4th edn

Perennial. Culms erect, 20–100 cm tall, 1–2.5 mm diam., 2–5 -noded. Mid-culm
nodes pubescent. Lateral branches sparsely branched. Leaf-sheaths glabrous on
surface. Ligule a fringe of hairs, 0.6–1 mm long. Leaf-blades involute, 7–30 cm
long, 1.5–7 mm wide. Leaf-blade surface scabrous, glabrous or indumented.

Inflorescence compound, a panicle of racemes. Racemes 2–10, appressed, 2–10 cm
long. Central inflorescence axis 5–18 cm long.

Spikelets pedicelled. Fertile spikelets 2-flowered, the lower floret barren
(rarely male), the upper fertile, comprising 1 basal sterile florets,
comprising 1 fertile floret(s), without rachilla extension, lanceolate,
dorsally compressed, 3.6–6 mm long.

Glumes. Glumes
thinner than fertile lemma. Upper glume lanceolate or ovate, 3.7–5.2 mm long,
membranous, without keels, 5 -nerved. Upper glume surface indumented. Upper
glume apex muticous or mucronate or awned. Florets. Basal sterile
florets 1, barren, without significant palea. Lemma of lower sterile floret 90
% of length of spikelet, 5 -nerved.

Fertile lemma 2.3–2.7
mm long, without keel, 5 -nerved. Lemma apex mucronate. Anthers 3.

: Australasia and South America.

Australian Distribution:
Western Australia, Northern Territory, South Australia, Queensland, New South
Wales, Victoria.

Western Australia:
Gardner, Hall, Dampier. Fortescue, Ashburton, Carnarvon, Austin. Northern
: Darwin & Gulf, Central Australia North, Central Australia
South. South Australia: Lake Eyre, Gairdner-Torrens Basin, Flinders
Ranges, Eastern, Yorke Peninsula, Southern Lofty. Queensland: Burke,
Burnett, Cook, Darling Downs, Gregory North, Leichhardt, Maranoa, Mitchell,
Moreton, North Kennedy, Port Curtis, South Kennedy, Warrego, Wide Bay, Gregory
South. New South Wales: North Coast, Central Coast, Northern Tablelands,
North-Western Slopes, Central-Western Slopes, South-Western Slopes,
North-Western Plains, South-Western Plains, North Far Western Plains, South Far
Western Plains. Victoria: Murray Mallee, Riverina, Wimmera.

Notes. In
tropical and subtropical rain forests, temperate wet sclerophyll forests, dry
sclerophyll forests, Brigalow forests, tropical and subtropical sub-humid
woodlands, semi-arid shrub woodlands, shrub steppe shrublands, acacia
shrublands, arid tussock grasslands, and arid hummock grasslands. A widespread
native species which tends to intergrade with E. crebra and E.

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