Amphipogon avenaceus

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

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

Type of Basionym or
Protologue Information
: HT: R. Brown 6229, no date, Australia:
Western Australia, New Holland (BM; IT: US-75457 (fragm. ex BM)).

Key references
(books and floras):
[1810]. R.Brown, Prodromus (175), [2002] D.Sharp
& B.K.Simon, AusGrass, Grasses of Australia.

Derivation: L.
-acea, resembling. With inflorescences and/or spikelets similar to those
of Avena.

Perennial. Rhizomes present, short. Culms erect or geniculately ascending,
20–35 cm tall, 3–5 -noded. Ligule a fringe of hairs. Leaf-blades filiform,
involute, 5–15 cm long, 1–2 mm wide.

Inflorescence solid, a panicle. Panicle oblong, 4 cm long, 1 cm wide.

Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, oblong, laterally compressed, 12–13 mm

Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, scarious, much
thinner on margins, without keels, 3 -nerved. Upper glume lanceolate, 10–12 mm
long, scarious, without keels, 3 -nerved.

Fertile lemma 8–9 mm long, without keel, 3 -nerved. Lemma surface indumented.
Lemma apex lobed, awned, 3 -awned. Median (principal) awn 4 mm long overall.
Lateral lemma awns present. Palea 2 -nerved, without keels. Palea apex lobed,
awned. Anthers 3.

Continental Distribution:

: Western Australia.

Western Australia:
Menzies, Warren, Eyre.

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