Austrostipa compressa

Austrostipa compressa (R.Br.)
S.W.L.Jacobs & J.Everett. Telopea 6: 584 (1996).

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

Basionym and/or
Replacement Name:
 Stipa compressa
R.Br, Prodr. 175 (1810).

Type of Basionym or
Protologue Information
: HT: A. Menzies s.n., Australia: Western
Australia: King Georges Sound (BM).

Key references
(books and floras):
[1810]. R.Brown, Prodromus (175 as Stipa),
[1878] G.Bentham, Flora Australiensis 7 (567 as Stipa compressa),
[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (176
as Stipa compressa), [2002] D.Sharp & B.K.Simon, AusGrass,
Grasses of Australia
, [2002] J.Wheeler, N.Marchant & M.Lewington, Flora
of the South West (403), [2009] A.Wilson (ed.). Flora of Australia, Vol
44A. Poaceae 2 (25).

[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of Australiia, [2009].
A.Wilson (ed.), Flora of Australia 44A: Poaceae 2 (37, Fig 5).

Derivation: L. comprimo,
squeeze together. Culms flattened.

Habit. Annual.
Culms 20–70 cm tall. Leaf-sheaths glabrous on surface. Ligule an eciliate
membrane, 4–11 mm long, membranous, erose or bilobed or trilobed. Leaf-blades
filiform or linear, involute or convolute, 1–5.5 mm wide.

Inflorescence compound, a panicle or a panicle. Panicle linear, 10–30 cm long.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, terete, 13 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 3–5 -nerved. Upper glume lanceolate, 9–14 mm long, membranous,
without keels, 3–5 -nerved.

Fertile lemma 7–8 mm long, without keel. Lemma surface indumented. Lemma apex
lobed, awned, 1 -awned. Median (principal) awn 70–170 mm long overall, with a
twisted column. Column 20–40 mm long. Palea without keels. Grain 3–3.5 mm long.

: Australasia.

: Western Australia.

Western Australia:
Irwin, Drummond, Menzies, Warren, Eyre.

Mainly sandy areas near the coast of south-western 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