Triodia inaequiloba N. T. Burbidge. Austral. J. Bot. 8: 391 (1960).
Classification. (GPWG 2001) : Subfamily
Chloridoideae. Triodeae.
Type of Basionym or
Protologue Information: Western Australia: Northern Province; 1 mile east
of Mt. Amherst homestead, 15.vii.1959, M. Lazarides 6343 (HT: CANB, IT:
AD, BRI, DNA, MEL, NSW, PERTH, K, US).
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia.
Habit.
Perennial. Stolons present. Culms 50–1300 cm tall. Leaf-sheaths glabrous on
surface or hairy. Leaf-sheath auricles absent. Ligule a fringe of hairs.
Leaf-blades straight, aciculate, conduplicate, 4–24 cm long, 1–1.7 mm wide.
Inflorescence.
Inflorescence compound, a panicle. Panicle lanceolate or ovate, 10–18 cm long,
2.5–4.5 cm wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (4–6), comprising 4–6 fertile floret(s), with diminished florets at the
apex, ovate, laterally compressed, 7–12 mm long.
Glumes.
Glumes similar, thinner than fertile lemma. Lower glume ovate, chartaceous or
scarious, without keels, 3 -nerved. Lower glume surface glabrous. Lower glume
apex mucronate. Upper glume ovate, 5–7 mm long, chartaceous or scarious,
without keels, 3 -nerved. Upper glume surface asperulous, glabrous. Upper glume
apex entire, mucronate.
Florets.
Fertile lemma 6–7 mm long, without keel or keeled, 9 -nerved. Lemma surface
indumented. Lemma apex lobed. Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: Western Australia.
Western Australia:
Fitzgerald, Dampier. Canning.
Notes.
Distinguishing characters include a large dense panicle; ovate spikelets at
least 1/2 as wide as long; mucronate broad glumes almost as long as the
spikelet; hirsute lemma with a mucronate mid-lobe distinctly longer than the
lateral lobes; glabrous relatively long palea; coarse habit and extremely rigid
and pungent blades; woolly orifice margins and lamina petioles. Aplin s.n.
differs from the type specimens in having longer spikelets with relatively
short glumes, the palea long-hairy on the keel in the lower half, mostlyciliate
ligule and short blades.
Kimberley
Region, Dampier and Fitzgerald Districts of W.A. Granite slopes of range;
fine-textured shallow soil on laterite; flowers July, August, September.
