Austrostipa nodosa (S.T.Blake)
S.W.L.Jacobs & J.Everett. Telopea 6: 587 (1996).
Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Stipeae.
Basionym and/or
Replacement Name: Stipa nodosa S.T.
Blake, Proc. Roy. Soc. Queensland 62: 89 (1952).
Type of Basionym or
Protologue Information: HT: S.T. Blake 16914, 1 Sep 1946, Australia:
South Australia: Flinders Ranges in Parachilna Gorge, between Blinman and
Parachilna Spring (BRI-008016, BRI-008017; IT: AD, L).
Recent synonyms:
Stipa effusa.
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
Australia (74), [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses
of New South Wales (155), [2009] A.Wilson (ed.). Flora of Australia,
Vol 44A. Poaceae 2 (46).
Illustrations:
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (74, Fig. 35), [2008] S.W.L.Jacobs, R.D.B.Whalley
& D.J.B.Wheeler, Grasses of New South Wales, 4th edn (155), [2009].
A.Wilson (ed.), Flora of Australia 44A: Poaceae 2 (44, Fig 6).
Habit.
Perennial. Culms erect, 50–100 cm tall, 1–2 mm diam., 3–5 -noded. Leaves basal
and cauline. Ligule an eciliate membrane, 0.5–2 mm long, truncate. Leaf-blades
flat or involute, 15–30 cm long, 1–3 mm wide. Leaf-blade surface scaberulous.
Inflorescence.
Inflorescence compound, a panicle or a panicle. Panicle 15–50 cm long, 1–2 cm
wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, terete, 10–15 mm long.
Glumes. Glumes
similar. Lower glume lanceolate, hyaline, without keels, 3 -nerved. Upper glume
lanceolate, 7–19 mm long, hyaline, without keels, 5 -nerved.
Florets.
Fertile lemma 4–7 mm long, 5 -nerved. Lemma apex awned, 1 -awned. Median
(principal) awn 45–100 mm long overall, with a twisted column. Column 5–10 mm
long. Palea without keels. Grain 3–4 mm long.
Continental
Distribution: Australasia.
Australian
Distribution: South Australia, Queensland, New South Wales, Victoria,
Tasmania.
South Australia:
Lake Eyre, Gairdner-Torrens Basin, Flinders Ranges, Eastern, Eyre Peninsula,
Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island,
South-eastern. Queensland: Darling Downs. New South Wales:
Central Coast, South Coast, Northern Tablelands, Central Tablelands, Southern
Tablelands, North-Western Slopes, Central-Western Slopes, South-Western Slopes,
North-Western Plains, South-Western Plains, North Far Western Plains, South Far
Western Plains. Victoria: Murray Mallee, Lowan Mallee, Wimmera, Wannon,
Grampians, Riverina, Midlands, Volcanic Plain, Gippsland Plain, Wilsons
Promontory, East Gippsland. Tasmania: Midlands, East Coast.
Notes.
Widespread in all southern mainland States including New South Wales.
