Amphipogon turbinatus

Amphipogon turbinatus R.Br. Prodr.
175 (1810).

Classification. (GPWG 2001) : Subfamily
Arundinoideae. Tribe Amphipogoneae.

Type of Basionym or
Protologue Information
: HT: R. Brown 6226, no date, Australia:
Western Australia: New Holland (BM; IT: US-75452 (fragm. ex BM)).

Key references
(books and floras):
[1810]. R.Brown, Prodromus (175), [1878]
G.Bentham, Flora Australiensis 7 (599), [1952] C.A.Gardner, Flora of
Western Australia
1 Gramineae (139), [2002] D.Sharp & B.K.Simon,
AusGrass, Grasses of Australia, [2002] J.Wheeler, N.Marchant &
M.Lewington, Flora of the South West (399).

[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (136,
Pl. 41), [2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3
(Fig. 2,F-I).

Derivation: L.
, a top; -ata, possessing. Spikelets top-shaped.

Perennial. Rhizomes present, short. Culms erect or geniculately ascending,
30–50 cm tall. Mid-culm nodes glabrous. Ligule a fringe of hairs. Leaf-blades
curved, filiform, involute, 10–15 cm long, 2–3 mm wide. Leaf-blade surface

Inflorescence solid, a panicle. Panicle obovate, 1.5 cm long, 1.5 cm wide.

Spikelets pedicelled. Basal sterile spikelets rudimentary. Fertile spikelets
1-flowered, comprising 1 fertile floret(s), without rachilla extension, oblong,
laterally compressed, 8–10 mm long.

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous,
without keels, 3 -nerved. Lower glume surface indumented. Lower glume apex
awned. Upper glume lanceolate, 8–10 mm long, membranous, without keels, 3
-nerved. Upper glume surface indumented. Upper glume apex awned.

Fertile lemma 6–8 mm long, without keel, 3 -nerved. Lemma surface indumented.
Lemma apex lobed, awned, 3 -awned. Median (principal) awn 6–8 mm long overall.
Lateral lemma awns present. Palea 2 -nerved, without keels. Palea apex lobed,
awned. Anthers 3. Grain 2.5 mm long.

: Australasia.

: Western Australia.

Western Australia:
Irwin, Drummond, Dale, Menzies, Eyre, Roe, Avon.

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