Eriachne gardneri

Eriachne gardneri Hartley. J. Linn. Soc., Bot. 52: 344 (1942).

Classification. (GPWG 2001) : Subfamily Micrairoideae. Eriachneae.

Type of Basionym or
Protologue Information
: HT: Gardner 3053, 17 Aug 1932, Australia:
Western Australia: Eremaean Province, Ashburton River at Minderoo, 17 Aug 1932

Key references
(books and floras):
[1952] C.A.Gardner, Flora of Western Australia 1
Gramineae (49), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of

[2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3 (Fig.

Perennial. Culms erect or geniculately ascending, 30–70 cm tall, 4 -noded.
Mid-culm internodes glabrous. Mid-culm nodes bearded. Lateral branches
branched. Ligule a fringe of hairs, 1 mm long. Leaf-blades flat or convolute,
10–20 cm long, 2–5 mm wide. Leaf-blade surface scaberulous, glabrous.

Inflorescence compound, a panicle or a panicle. Panicle oblong, 5–9 cm long,
1–3 cm wide.

Spikelets pedicelled. Fertile spikelets 2-flowered, both fertile, comprising 2
fertile floret(s), without rachilla extension, ovate, laterally compressed,
7.5–10 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate or ovate,
cartilaginous, much thinner on margins, without keels, 11–15 -nerved. Lower
glume surface indumented. Lower glume apex muticous or mucronate. Upper glume
lanceolate or ovate, 7–10 mm long, cartilaginous, without keels, 11–15 -nerved.
Upper glume surface indumented. Upper glume apex muticous.

Fertile lemma 7.5–10 mm long, without keel, 5–7 -nerved. Lemma surface
indumented. Lemma apex muticous. Palea 2 -nerved. Palea apex dentate, with
excurrent keel nerves. Lodicules present. Anthers 3. Grain 3–5 mm long.

: Australasia.

: Western Australia.

Western Australia:
Fortescue, Ashburton.

Endemic. W.A. and restricted in area. Seaward face of foredune and red sand
dune. Flowers and fruits Mar. and Aug. (early-autumn and late-winter).

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