Amphipogon setaceus (R. Br.)
T.Macfarlane. Fl. Australia 43: 374 (2002). Classification. (GPWG 2001) : Subfamily Arundinoideae. Tribe
Amphipogoneae.
Basionym and/or
Replacement Name: Diplopogon
setaceus R.Br., Prodromus Florae Novae Hollandiae 176. 1810.
Key references
(books and floras): [1810]. R.Brown, Prodromus (176 as Diplopogon
setaceus), [1878] G.Bentham, Flora Australiensis 7 (573 as Diplopogon
setaceus), [1952] C.A.Gardner, Flora of Western Australia 1 Gramineae
(140 as Diplopogon setaceus), [2002] D.Sharp & B.K.Simon, AusGrass,
Grasses of Australia (as Diplopogon setaceus), [2002] J.Wheeler,
N.Marchant & M.Lewington, Flora of the South West (412 as Diplopogon
setaceus).
Illustrations:
[1952] C.A.Gardner, Flora of Western Australia
1 Gramineae (141, Pl.42 as Diplopogon), [2005] K.Mallet (ed.),
Flora of Australia
44B: Poaceae 3 (Fig. 2, J-M).
Derivation: L.
seta, bristle; -acea, indicating resemblance.
Habit.
Perennial. Culms 30–60 cm tall. Ligule a fringe of hairs. Leaf-blades filiform,
convolute, 15–25 cm long, 1 mm wide.
Inflorescence.
Inflorescence solid, a panicle. Panicle globose, 1–2.5 cm long.
Spikelets.
Spikelets pedicelled. Basal sterile spikelets absent or rudimentary, 0–3 in
number. Fertile spikelets 1-flowered, comprising 1 fertile floret(s), without
rachilla extension, cuneate, laterally compressed, 7 mm long.
Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
keeled, 1-keeled, 1 -nerved. Lower glume apex awned. Upper glume elliptic, 7 mm
long, membranous, keeled, 1-keeled, 1 -nerved. Upper glume apex awned.
Florets.
Fertile lemma 5 mm long, without keel, 3 -nerved. Lemma apex awned, 3 -awned.
Median (principal) awn 4–5 mm long overall, with a twisted column. Lateral
lemma awns present. Palea 2 -nerved, without keels. Palea apex dentate, awned.
Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: Western Australia.
Western
Australia: Warren,
Eyre.
