Poa halmaturina

Poa halmaturina J. M. Black. Trans. & Proc. Roy. Soc. S. Australia 66: 248
(1942). Classification. (GPWG 2001) : Subfamily Pooideae.
Tribe Poeae.

Type of Basionym or
Protologue Information
: Australia: Rocky River, Kangaroo Isl: in burnt
consolidated dumes: Dec 1940, J.B.Cleland (Tate Soc. Exped.) (HT: AD).

Key references
(books and floras):
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
(150), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A.
Poaceae 2 (336).

[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia  (151, fig. 103).

Perennial. Rhizomes present, elongated. Culms erect, 5–12 cm tall. Lateral branches
simple. Leaves mostly basal. Leaf-sheaths smooth, glabrous on surface. Ligule a
fringed membrane, a ciliolate membrane, 0.2–0.6 mm long, abaxially hairy,
truncate. Leaf-blades erect, curved, aciculate, involute or terete, 2–25 cm
long, 0.4–0.7 mm wide. Leaf-blade surface smooth, glabrous.

Inflorescence compound, a panicle. Panicle linear, 1.5–3 cm long.

Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (2–4), comprising 2–4 fertile floret(s), with diminished florets at the
apex, oblong, laterally compressed, 3.8–5.5 mm long.

Glumes. Glumes
similar. Lower glume oblong, membranous, keeled, 1-keeled, 3 -nerved. Upper
glume oblong, 2.1–3.2 mm long, membranous, keeled, 1-keeled, 3 -nerved.

Fertile lemma 3–3.6 mm long, keeled, 5 -nerved. Lemma surface glabrous or
indumented. Lodicules present. Anthers 3.

: Australasia.

: South Australia, Victoria, Tasmania.

South Australia:
Southern Lofty, Kangaroo Island, South-eastern. Victoria: Wannon. Tasmania:
King Island, Furneaux Group, South West.

Seemingly differing from Poa poiformis in the long scaly rhizomes,
smaller plant and spikelet parts.

Endemic. with few
collections. Amongst sand dunes. Flowers Nov.-Feb.


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