Hemarthria uncinata R. Br. Prodr. 207
Classification. (GPWG 2001) : Subfamily
Type of Basionym or
Protologue Information: HT: R. Brown 6160, Australia (BM
(photo, BI, K); IT: K, LE?).
(books and floras): . R.Brown, Prodromus (207 & as Hemarthria
compressa),  G.Bentham, Flora Australiensis 7 (510 as Hemarthria
compressa),  C.A.Gardner, Flora of Western Australia 1 Gramineae
(306),  D.Sharp & B.K.Simon, AusGrass, Grasses of Australia,
 J.Wheeler, N.Marchant & M.Lewington, Flora of the South West (419),
 J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia
(520),  S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New
South Wales (272).
 C.A.Gardner, Flora of Western
Australia 1 Gramineae (305, Pl. 89),
 J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (521, Fig. 445 as var. uncinata),
 N.T.Burbidge. rev. S.W.L.Jacobs, Australian Grasses (149).
Perennial. Stolons present. Culms erect or prostrate, 20–100 cm tall. Mid-culm
nodes glabrous. Lateral branches sparsely branched or branched. Ligule a
fringed membrane, a ciliate membrane, 0.3 mm long. Leaf-blades flat or
conduplicate, 5–15 cm long, 1.5–5 mm wide. Leaf-blade surface glabrous.
Inflorescence solid, a rame. Rhachis fracturing into irregular segments.
Spikelets sessile, 1 in the cluster. Companion spikelets pedicelled, 1 in the
cluster. Companion spikelets developed, male. 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, oblong, dorsally compressed, 5–10 mm
Glumes dissimilar, firmer than fertile lemma. Lower glume oblong, herbaceous,
keeled, 2-keeled, winged on keel, winged narrowly, 5–7 -nerved. Lower glume
surface glabrous. Lower glume apex muticous or awned. Upper glume elliptic or
oblong, membranous, without keels, 1–3 -nerved. Upper glume surface glabrous. Florets.
Basal sterile florets 1, barren, without significant palea. Lemma of lower
sterile floret hyaline.
Fertile lemma without
keel, 0 -nerved. Palea present or absent. Anthers 3.
Distribution: Western Australia, South Australia, Queensland, New South
Wales, Victoria, Tasmania, A.C.T.
Australia: Irwin, Drummond, Menzies, Warren, Eyre. South
Australia: Eyre Peninsula, Murray,
Southern Lofty, Kangaroo
Island, South-eastern. Queensland: Burnett, Cook, Darling Downs,
Leichhardt, Moreton, North Kennedy, Port Curtis, Wide Bay.
New South Wales: North Coast, Central Coast, South Coast, Northern
Tablelands, Central Tablelands, Southern Tablelands, North-Western Slopes,
Central-Western Slopes, South-Western Slopes. Victoria: East Gippsland,
Eastern Highlands, Gippsland Plain, Grampians, Lowan Mallee, Midlands, Murray
Mallee, Otway Plain, Otway Range, Wilsons Promontory, Riverina, Volcanic Plain,
Wannon, Wimmera. Tasmania: North West,
North East, West Coast, Midlands, East Coast,
abundant near the coast, in wet areas. From all Australian states except N.T.
Infra-specific taxa: var. uncinata, var. spathacea .
Leaf sheaths loose,
expanded, flattened and spathe-like H. uncinata var. spathacea
Leaf sheaths not as above H. uncinata var. uncinata