Poa umbricola
Vickery. Contr. New South Wales Natl Herb. 4: 194–195 (1970).
Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Poeae.
Type of Basionym or
Protologue Information: Australia: South Australia: Mt. Lofty Range:
Morialta Falls, ca. 10.5 km. ENE of Adelaide, near top of first fall: 12 Oct
1957, Hj. Eichler 14257 (HT: AD 95824051; IT: NSW 85459).
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 (160), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A.
Poaceae 2 (329).
Illustrations:
[2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South Australia (160, fig. 113).
Habit.
Perennial. Culms sprawling, 20–50 cm tall. Mid-culm nodes glabrous. Lateral
branches branched. Leaves cauline. Leaf-sheaths smooth, glabrous on surface.
Ligule a fringed membrane, a ciliolate membrane, 0.2–0.5 mm long, abaxially
hairy, truncate. Leaf-blades flat or involute, 2–15 cm long, 1–2 mm wide.
Leaf-blade surface scaberulous, glabrous.
Inflorescence.
Inflorescence compound, a panicle. Panicle elliptic, 5–13.5 cm long.
Spikelets.
Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets ((2-)3–4(-5)), comprising (2–)3–4(–5) fertile floret(s), with
diminished florets at the apex, oblong, laterally compressed, 2.9–4.3 mm long.
Glumes. Glumes
similar. Lower glume oblong, membranous, much thinner on margins, keeled,
1-keeled, 1–3 -nerved. Upper glume oblong, 2.1–2.6 mm long, membranous, keeled,
1-keeled, 3 -nerved.
Florets.
Fertile lemma 2.2–3 mm long, keeled, 5 -nerved. Lodicules present. Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: South Australia.
South Australia:
Southern Lofty.
Notes. Endemic.
Often straggling among rocks. Flowers Oct.-Nov. Fruits Nov.-Dec.
