Triodia integra M. Lazarides.
Austral. Syst.
Bot. 10: 436–437
(1997).
Classification. (GPWG 2001) : Subfamily
Chloridoideae. Triodeae.
Type of Basionym or
Protologue Information: Northern Territory: Central Australia South; Valley
of Eagles, MacDonnell Ranges, 23º36' S, 134º20' E, 2.vi.1974, A.C.
Beauglehole 44942 (HT: BRI; IT: DNA).
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia.
Illustrations:
[2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3 (Fig.
36P-R).
Habit. Perennial.
Leaf-sheaths smooth or scaberulous, glabrous on surface. Leaf-sheath auricles
absent. Ligule a fringe of hairs, 1–1.3 mm long. Leaf-blades straight, filiform
or linear, flat or conduplicate, 9–15 cm long, 1–2 mm wide. Leaf-blade surface
indumented.
Inflorescence.
Inflorescence compound, a panicle. Panicle linear, dense, 14–19 cm long, 1–1.5
cm wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (11–18), comprising 11–18 fertile floret(s), with diminished florets at
the apex, lanceolate, laterally compressed, 17–25 mm long.
Glumes.
Glumes similar, thinner than fertile lemma. Lower glume lanceolate,
cartilaginous, keeled, 1-keeled, 5–7 -nerved. Lower glume surface glabrous.
Lower glume apex muticous or mucronate. Upper glume orbicular to oblate, 7–9 mm
long, scarious or cartilaginous, keeled, 1-keeled, 5–7 -nerved. Upper glume
surface smooth or asperulous, glabrous. Upper glume apex entire, muticous or
mucronate.
Florets.
Fertile lemma 7–8 mm long, without keel, 9 -nerved. Lemma surface indumented.
Lemma apex dentate or lobed, mucronate. Median (principal) awn from a sinus, 1
mm long overall. Palea apex dentate. Lodicules present. Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: Northern Territory.
Northern Territory:
Central Australia South.
Notes.
Known from only two collections.
Distinguishing characters include the
lanceolate, closely flowered, long spikelet distinctively tapered to the apex;
almost entire, shiny lemma with unequal lobes; dense, linear panicle; partly
hairy, relatively short palea with broadly winged keels and broad flaps;
usually long bearded mouth and hairy blades, and non-resinous foliage.
Southern
Central Australia. In mountain ranges; flowers May-June.
