Lachnagrostis aequata

Lachnagrostis aequata (Nees)S.W.L.Jacobs. Telopea

Classification. (GPWG 2001) : Subfamily Pooideae.
Tribe Poeae.

Basionym and/or
Replacement Name:
Nees, Hooker's J. Bot. Kew Gard. Misc. 2: 412 (1843).

Type of Basionym or
Protologue Information
: HT: R.C. Gunn 1005, 18 Jan 1838, Australia: Tasmania (C; IT: L).

Key references
(books and floras):
[1878] G.Bentham, Flora Australiensis 7 (578 as Deyeuxia
), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of Australia,
[2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South
(as L. scabra, nom. inval. fide TROPICOS).

Habit. Annual.
Culms erect or geniculately ascending, 60–75 cm tall, 4 -noded. Mid-culm nodes
glabrous. Leaf-sheaths antrorsely scabrous. Ligule an eciliate membrane, 2–3 mm
long, lacerate, truncate or obtuse. Leaf-blades linear, flat, 6–13 cm long,
1.5–2.5(–4) mm wide. Leaf-blade surface scabrous.

Inflorescence compound, a panicle. Panicle pyramidal, 12–25 cm long.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, laterally compressed,
1.75–2(–2.5) mm long.

Glumes. Glumes
similar, firmer than fertile lemma. Lower glume ovate, membranous, much thinner
on margins, keeled, 1-keeled, 1 -nerved. Upper glume ovate, 2 mm long,
membranous, keeled, 1-keeled, 1 -nerved. Upper glume surface asperulous.

Fertile lemma 1.4–1.7 mm long, without keel, 5 -nerved. Lemma surface glabrous. Lemma apex dentate, muticous.
Lodicules present. Anthers 3.

: Australasia.

: South Australia, New South Wales, Tasmania.

South Australia: South-eastern. New South Wales:
Southern Tablelands. Tasmania: North West, South West.

AVH 2011


Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith