Austrostipa oligostachya

Austrostipa oligostachya (Hughes)
S.W.L.Jacobs & J.Everett. Telopea 6: 587 (1996).

Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Stipeae.

Basionym and/or
Replacement Name:
Hughes, Bull. Misc. Inform. Kew 1921: 12 (1921).

Type of Basionym or
Protologue Information
: HT: Robertson 534, Australia: Victoria:
Wando Vale [as Wndu Vale], growing in tussocks (K).

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
(88), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae
2 (40).

[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia  (89, fig. 50), [2009]. A.Wilson (ed.),
Flora of Australia
44A: Poaceae 2 (55, Fig 8).

Perennial. Rhizomes present, short. Culms 30–100 cm tall, 2 -noded. Mid-culm
nodes pubescent. Leaf-sheaths glabrous on surface or hairy. Ligule a fringed
membrane, a ciliate membrane, 0.5–2 mm long, truncate. Leaf-blades curved,
filiform, involute or convolute, 12–20 cm long, 0.5–2 mm wide. Leaf-blade
surface smooth or scaberulous.

Inflorescence compound, a panicle. Panicle linear, 10–25 cm long.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, terete, 14 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 3 -nerved. Upper glume lanceolate, 10–15 mm long, membranous,
without keels, 5 -nerved.

Fertile lemma 9 mm long, without keel, 5 -nerved. Lemma surface indumented.
Lemma apex dentate or lobed, awned, 1 -awned. Median (principal) awn from a
sinus, 50–70 mm long overall, with a twisted column. Column 18–25 mm long.
Palea without keels. Grain 3–4 mm long.

: Australasia.

: South Australia, Victoria.

South Australia:
Southern Lofty, South-eastern. Victoria: Grampians, Midlands, Volcanic
Plain, Wannon, Wimmera.

Notes. South western
Victoria and the Southern Lofty Region of South Australia.

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