Chrysopogon fallax S. T. Blake, nom superfl. Univ. Queensland Dept. Biol. Pap 2(3): 9 (1944).
Classification. (GPWG 2001) : Subfamily Panicoideae. Andropogoneae.
Type of Basionym or Protologue Information: HT: S.T. Blake 8108, 18 Mar 1935, Australia: Queensland: Leichhardt Dist. (BRI-8033; IT: K, NSW, US-1865513).
Key references (books and floras): . R.Brown, Prodromus (199 as Holcus gryllus),  G.Bentham, Flora Australiensis 7 (537 as Chysopogon gryllus auct.),  C.A.Gardner, Flora of Western Australia 1 Gramineae (323),  M.Lazarides in J.Jessop (ed)., Flora of Central Australia (491),  D.Sharp & B.K.Simon, AusGrass, Grasses of Australia,  J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (513),  S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South Wales (186).
Illustrations:  C.A.Gardner, Flora of Western Australia 1 Gramineae (321, Pl. 94),  J.C.Tothill & J.B.Hacker, Grasses of Southern Queensland (160),  J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (512, Fig. 439),  N.T.Burbidge. rev. S.W.L.Jacobs, Australian Grasses (91).
Habit. Perennial. Culms erect or geniculately ascending, 30–120 cm tall, 3–5 -noded. Mid-culm internodes glabrous or pubescent. Mid-culm nodes glabrous. Lateral branches simple or sparsely branched or branched. Leaf-sheaths glabrous on surface or hairy. Ligule a fringed membrane, a ciliolate membrane. Leaf-blades 5–45 cm long, 2–7 mm wide. Leaf-blade surface smooth or scaberulous, glabrous or indumented.
Inflorescence. Inflorescence compound, a panicle of rames. Panicle lanceolate, 7–21 cm long, 2.5–7 cm wide. Rhachis obsolete.
Spikelets. Spikelets sessile, 1 in the cluster. Companion spikelets pedicelled, 2 in the cluster. Companion spikelets developed, containing empty lemmas or male, 9–14 mm long. Companion spikelet glumes muticous or awned. Fertile spikelets 2-flowered, the lower floret barren (rarely male), the upper fertile, comprising 1 basal sterile florets, comprising 1 fertile floret(s), without rachilla extension, lanceolate, laterally compressed, 9–14 mm long.
Glumes. Glumes dissimilar, firmer than fertile lemma. Lower glume oblong, cartilaginous, without keels, 5–7 -nerved. Upper glume oblong, keeled, 1-keeled, 3–5 -nerved. Upper glume surface scabrous. Upper glume apex awned. Florets. Basal sterile florets 1, barren, without significant palea. Lemma of lower sterile floret hyaline, 2–3 -nerved.
Fertile lemma 5.5–7 mm long, without keel, 1 -nerved. Lemma apex dentate, awned, 1 -awned. Median (principal) awn from a sinus, 20–45 mm long overall, with a twisted column. Palea 0–2 -nerved. Grain 3.5–4 mm long.
Continental Distribution: Australasia.
Australian Distribution: Western Australia, Northern Territory, South Australia, Queensland, New South Wales.
Western Australia: Fortescue, Ashburton, Carnarvon, Austin. Northern Territory: Darwin & Gulf, Victoria River, Barkly Tableland, Central Australia North, Central Australia South. South Australia: Lake Eyre. Queensland: Burke, Burnett, Cook, Darling Downs, Gregory North, Leichhardt, Maranoa, Mitchell, Moreton, North Kennedy, Port Curtis, South Kennedy, Warrego, Wide Bay, Gregory South. New South Wales: Northern Tablelands, North-Western Slopes, North-Western Plains, North Far Western Plains.
Notes. Found in all mainland states except Vic. in subtropical and tropical areas on a variety of soils; mainly in open forests. It has some forage value but not very productive and is resistant to drought and heavy grazing. Flowers Oct.--July.