Enneapogon lindleyanus (Domin) C. E.
Hubbard. Bull. Misc. Inform. 450 (1934).
Classification.
(GPWG 2001) : Subfamily Chloridoideae. Pappophoreae.
Basionym and/or
Replacement Name: Pappophorum
lindleyanum Domin, Biblioth. Bot. 20: 379 (1915).
Type of Basionym or
Protologue Information: LT: Walcot s.n., Australia: Western
Australia: Dampier Archipelago (K). LT designated (as type) by Burbidge, Proc.
Linn. Soc. London 153: 82–83 (1941).
Recent synonyms:
E. oblongus, E. pubescens.
Key references
(books and floras): [1952] C.A.Gardner, Flora of Western Australia 1
Gramineae (32 & as E. oblongus), [1981] M.Lazarides in
J.Jessop (ed)., Flora of Central Australia (454 & 455 as E.
oblongus), [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia, [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
Australia (334), [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses
of New South Wales (241).
Illustrations:
[2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3 (Fig.
30F-J), [2006] J.Jessop, G.R.M.Dashorst, F.M.James, Grasses of South
Australia (334, Fig. 267), [2008]
S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South Wales,
4th edn (241).
Habit. Annual
or perennial. Culms 13.5–66 cm tall. Mid-culm internodes hirsute. Lateral
branches branched. Ligule a fringe of hairs. Leaf-blades filiform, flat or
involute, 1–4.4 mm wide. Leaf-blade surface scaberulous.
Inflorescence.
Inflorescence solid, a panicle. Panicle elliptic or ovate or globose,
0.5–1.8(–4.6) cm long, 0.5–1.5 cm wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1 or more flowered, with 1 fertile
floret (1(-2)), comprising 1(–2) fertile floret(s), with diminished florets at
the apex, oblong, laterally compressed, 2–4 mm long.
Glumes.
Glumes similar, thinner than fertile lemma. Lower glume ovate, membranous,
without keels, 3–12 -nerved. Lower glume surface glabrous or indumented. Lower
glume apex muticous or mucronate. Upper glume ovate, 2–5 mm long, membranous,
without keels, 5–7 -nerved. Upper glume surface smooth, glabrous or indumented.
Upper glume apex erose, muticous or mucronate.
Florets.
Fertile lemma 1.6–4.3 mm long, without keel, 9–11 -nerved. Lemma surface
indumented. Lemma apex dentate or lobed, awned, 9 -awned. Median (principal)
awn 1–2.5(–6.2) mm long overall. Lateral lemma awns present. Lodicules present.
Anthers 3. Grain 0.8–2.2 mm long.
Continental
Distribution: Australasia.
Australian
Distribution: Western Australia, Northern Territory, South Australia,
Queensland.
Western Australia:
Hall. Canning, Fortescue, Carnarvon. Coolgardie. Northern Territory:
Barkly Tableland, Central Australia South. South Australia:
North-western, Flinders Ranges, Eastern. Queensland: Burke, Burnett,
Cook, Darling Downs, Gregory North, Leichhardt, Mitchell, Moreton, North
Kennedy, Port Curtis, South Kennedy, Warrego.
Notes.
A variable species, characterised in its typical condition by small, compactly
capitate, prominently exserted panicles; short, entirely plumose awns and
strongly branched culms. E. oblongus was distinguished by relatively
long awns, partly glabrous palea, simple culms and flat, glaucous blades, but
these features are extremely variable and rarely present in combination. E.
pubescens differs only by its dense pubescence and larger dimensions, but
intergrades with E. lindleyanus.
Common
in W.A., N.T., and Qld, rare in S.A.
