Poa sallacustris

Poa sallacustris N.G. Walsh. Muelleria 7: 379 (1991).

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

Type of Basionym or
Protologue Information
: Australia: Victoria: Lake Corangamite, SW of
Causeway and Lake Martin, 11.5 km SW of Cressy, 27 km NNW of Colac P.O., 12 Sep
1977, Beauglehole & Hirth 56460 (HT: MEL; IT: BRI, NSW).

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae
2 (315).

Perennial. Rhizomes present, elongated. Culms erect or geniculately ascending,
15–31 cm tall. Lateral branches simple. Leaves cauline. Ligule an eciliate
membrane, 1–3.5 mm long, abaxially hairy, obtuse or acute. Leaf-blades
conduplicate, 6–12 cm long, 0.5–2 mm wide. Leaf-blade surface smooth, glabrous.

Inflorescence compound, a panicle. Panicle ovate, 5–10 cm long, 3–7 cm wide.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (3–6), comprising 3–6 fertile floret(s), with diminished florets at the
apex, oblong, laterally compressed, 4.3–8 mm long.

Glumes. Glumes
similar. Lower glume lanceolate, membranous, keeled, 1-keeled, 3 -nerved. Upper
glume lanceolate, 2.8–3.8 mm long, membranous, keeled, 1-keeled, 3 -nerved.

Fertile lemma 3–3.8 mm long, keeled, 5 -nerved. Lodicules present. Anthers 3.

: Australasia.

: Victoria.

Victoria: Volcanic

Closely related to P. fordeana.

On the volcanic plain between Colac and Hamilton W of Melbourne, Vic. Grows on
the margins of salt lakes. Flowers Sept.-Dec. Fruits Jan.-?.


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