Koeleria macrantha*

Koeleria macrantha* (Ledeb.) Schult. Mant 2: 345 (1824).

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

Basionym and/or
Replacement Name:
 Aira macrantha
Ledeb. Mem. Acad. Imp. Sci. Saint Petersbourg (Ser. 7) 5: 515(1815).

Type of Basionym or
Protologue Information
: Russia:
Siberia:,.

Key references
(books and floras):
[1878] G.Bentham, Flora Australiensis 7 (639 as Koeleria
cristata
), [1952] C.A.Gardner, Flora of Western Australia 1 Gramineae
(60 as Koeleria phleoides), [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 Wales (288), [2009] A.Wilson (ed.). Flora
of Australia
,
Vol 44A. Poaceae 2 (157).

Illustrations:
[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (61,
Pl. 16), [2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of
New South Wales
, 4th edn (288), [2009]. A.Wilson (ed.), Flora of Australia 44A:
Poaceae 2 (155, Fig.23).

Habit.
Perennial. Rhizomes present, elongated. Culms erect, 10–75 cm tall, 1–3 -noded.
Leaves mostly basal. Ligule an eciliate membrane, 0.2–0.7 mm long. Leaf-blades
filiform or linear, flat or convolute, 5–20 cm long, 1–3.5 mm wide. Leaf-blade
surface smooth or scabrous, glabrous or indumented.

Inflorescence.
Inflorescence solid, a panicle. Panicle linear or lanceolate, 1–12.5 cm long,
0.5–2 cm wide.

Spikelets.
Spikelets pedicelled. Fertile spikelets many flowered, with at least 2 fertile
florets (2–3(-4)), comprising 2–3(–4) fertile floret(s), with diminished
florets at the apex, oblong or cuneate, laterally compressed, 4–7 mm long.

Glumes.
Glumes similar, similar to fertile lemma in texture, shiny. Lower glume oblong
or obovate, membranous, much thinner on margins, keeled, 1-keeled, 1–3 -nerved.
Lower glume surface glabrous or indumented. Upper glume oblong or obovate,
4–6.2 mm long, membranous, keeled, 1-keeled, 3(–5) -nerved. Upper glume surface
glabrous or indumented.

Florets.
Fertile lemma 3.5–5.5 mm long, keeled, 3–5 -nerved. Lemma apex muticous or
mucronate or awned, 0–1 -awned. Median (principal) awn 0–0.4(–0.7) mm long
overall. Palea apex dentate. Lodicules present. Anthers 3. Grain 2.5–3 mm long.

Continental
Distribution
: Europe, Temperate Asia, Tropical Asia, Australasia, Pacific,
North America, and South America.

Australian
Distribution
: New South Wales, Victoria, Tasmania.

New South Wales: Southern Tablelands.
Victoria: Eastern
Highlands, Snowfields. Tasmania:
No region given.

Notes. A variable species
with a number of forms in Europe. K.
australiensis
Domin, described as native, appears to fall within the range
of variability of K. macrantha and is included here pending further
study of the species complex.

Introduced (?). Native of Europe. Montane woodland or grassland often on shallow,
rocky soils. 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