Austrostipa tuckeri

Austrostipa tuckeri (F.Muell.)
S.W.L.Jacobs & J.Everett. Telopea 6: 589 (1996).

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

Basionym and/or
Replacement Name:
 Stipa tuckeri
F. Muell., Fragm. 9: 128 (1881).

Type of Basionym or
Protologue Information
: HT: Garard Tucker s.n., Australia: between
the Lach and Darlington River (MEL; IT: NSW).

Key references
(books and floras):
[1952] C.A.Gardner, Flora of Western Australia 1
Gramineae (172 as Stipa), [2002] D.Sharp & B.K.Simon, AusGrass,
Grasses of Australia
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses
of South Australia
(68), [2008] S.W.L.Jacobs, R.D.B.Walley &
D.J.B.Wheeler, Grasses of New South Wales (160), [2009] A.Wilson (ed.). Flora
of Australia
, Vol 44A. Poaceae 2 (59).

[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (173,
Pl. 50 as Stipa), [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses
of South Australia
 (68, Fig. 29),
[2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South
, 4th edn (160), [2009]. A.Wilson (ed.), Flora of Australia 44A:
Poaceae 2 (44, Fig 6).

Perennial. Rhizomes present, short. Culms 20–50 cm tall, wiry. Mid-culm nodes
pubescent. Lateral branches branched. Leaf-sheaths hairy. Ligule a fringed
membrane, a ciliolate membrane, 2.5–6 mm long, membranous, obtuse. Leaf-blades
flat or involute, 0.3–4.5 mm wide. Leaf-blade surface indumented.

Inflorescence compound, a panicle. Panicle pyramidal, 8–20 cm long.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, terete, 8 mm long.

Glumes similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 3 -nerved. Lower glume surface glabrous. Upper glume lanceolate,
5–9 mm long, membranous, without keels, 3 -nerved.

Fertile lemma 5 mm long, without keel. Lemma surface indumented. Lemma apex
entire, awned, 1 -awned. Median (principal) awn 30–35 mm long overall, with a
twisted column. Column 10 mm long. Palea without keels. Grain 2.5–3 mm long.

: Australasia.

Australian Distribution:
Western Australia, South Australia, New South Wales, Victoria.

Western Australia:
Austin. Coolgardie. South Australia: Eastern, Murray. New South Wales:
North-Western Slopes, Central-Western Slopes, North-Western Plains,
South-Western Plains. Victoria: Murray Mallee.

Notes. Mainly on the
Western Plains of New South Wales but also on the North and Central Western
Slopes, and in Victoria, South Australia and Western 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