Austrostipa juncifolia

Austrostipa juncifolia (Hughes)
S.W.L.Jacobs & J.Everett. Telopea 6: 586 (1996).

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

Basionym and/or
Replacement Name:
Hughes, Bull. Misc. Inform. Kew 1921: 11 (1921).

Type of Basionym or
Protologue Information
: HT: Drummond, 4th coll. no. 377, Australia:
Westrn Australia: Swan River (K(photo, CANB)).

Key references
(books and floras):
[1952] C.A.Gardner, Flora of Western Australia 1
Gramineae (174 as Stipa), [2002] D.Sharp & B.K.Simon, AusGrass,
Grasses of Australia
, [2009] A.Wilson (ed.). Flora of Australia, Vol
44A. Poaceae 2 (34).

[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (175,
Pl.51 as Stipa), [2009]. A.Wilson (ed.), Flora of Australia 44A: Poaceae
2 (37, Fig 5).

Perennial. Rhizomes present, short. Culms erect, stature reed-like, 60–100 cm
tall, 2–3 -noded. Leaf-sheaths smooth, glabrous on surface. Ligule an eciliate
membrane, 2.5–8 mm long, membranous, obtuse. Leaf-blades erect, aciculate,
involute or convolute, 30–60 cm long, 1–2 mm wide. Leaf-blade surface glabrous.

Inflorescence compound, a panicle or a panicle. Panicle linear, 16–35 cm long.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, terete, 9 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 3–5 -nerved. Upper glume lanceolate, 9–10 mm long, membranous,
without keels, 3–5 -nerved.

Fertile lemma 7 mm long, without keel. Lemma surface indumented. Lemma apex
dentate or lobed, awned, 1 -awned. Median (principal) awn 25–50 mm long
overall, with a twisted column. Column 10–20 mm long. Palea without keels.

: Australasia.

: Western Australia.

Western Australia:
Eyre, Roe, Avon, Coolgardie.

Notes. Similar to A.
and also to A. stipoides, differing from the latter in
several dimensions, including a wider, more open panicle and the awn longer
with respect to the floret.

Margins of salt lakes or saline
depressions in the southern areas of 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