Lachnagrostis robusta (Vickery)S.W.L
Jacobs. Telopea 9:446(2001).
Classification. (GPWG 2001) : Subfamily Pooideae.
Basionym and/or
Replacement Name: Agrostis billardieri
var. robusta Vickery, Contr. New
South Wales Natl. Herb. 1: 110 (1941).
Type of Basionym or
Protologue Information: Australia:
Victoria:
Melbourne, 27 Nov 1853, Adamson 224 (HT: K).
Recent synonyms:
Agrostis robusta (Vickery) A.J.Brown & N.G.Walsh.
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
(232), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2
(188).
Illustrations:
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (232, fig. 177).
Habit. Annual
or perennial. Culms erect or geniculately ascending, 25–75 cm tall. Ligule an
eciliate membrane, 2–7 mm long. Leaf-blades 10–50 cm long, 0.2–1 mm wide.
Inflorescence.
Inflorescence compound, a panicle, a panicle. Panicle 10–25 cm long, 10–30 cm
wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), with a barren rachilla extension, laterally compressed, 3.5–5.5 mm
long.
Glumes. Glumes
similar, firmer than fertile lemma. Lower glume lanceolate, membranous, keeled,
1-keeled, 1 -nerved. Upper glume lanceolate, 3.5–5.5 mm long, membranous,
1-keeled, 1 -nerved.
Florets.
Fertile lemma 0.5–55 mm long, 5 -nerved. Lemma surface indumented. Lemma apex
dentate, awned, 1 -awned. Median (principal) awn dorsal, 3–5–8 mm long overall.
Lodicules present. Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: South Australia, Victoria, Tasmania.
South
Australia: Northern Lofty, Murray, South-eastern. Victoria: Volcanic Plain, Otway
Plain, Gippsland Plain. Tasmania:
North West, North East, East Coast, South West.
Notes.
Scattered in coastal areas from SE Victoria
westward to S.Australia. Also scattered along the Tasmanian coast, particularly
on the east coast (Brown & Walsh, 2000).
