Amphipogon debilis R.Br. Prodr.
1: 175 (1810).
Classification. (GPWG 2001) : Subfamily
Arundinoideae. Tribe Amphipogoneae.
Type of Basionym or
Protologue Information: HT: R. Brown 6228, no date, Australia:
Western Australia: New Holland (BM; IT: K, US-75456 (fragm. ex BM)).
Recent synonyms:
A. debilis var. fallax Domin, J. Linn. Soc., Bot. 41: 275
(1912).
Key references
(books and floras): [1810]. R.Brown, Prodromus (175), [1878]
G.Bentham, Flora Australiensis 7 (597), [1952] C.A.Gardner, Flora of
Western Australia 1 Gramineae (137), [2002] D.Sharp & B.K.Simon,
AusGrass, Grasses of Australia, [2002] J.Wheeler, N.Marchant & M.Lewington,
Flora of the South West (398).
Illustrations:
[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (135,
Pl. 40).
Derivation: L.
weak. Culms decumbent often much branched at the base.
Habit.
Perennial. Culms geniculately ascending or decumbent, 10–20 cm tall, 3–5
-noded. Mid-culm nodes glabrous. Ligule a fringe of hairs, 0.5–1 mm long.
Leaf-blades filiform, involute, 1–12 cm long, 1–2 mm wide. Leaf-blade surface
smooth or scaberulous.
Inflorescence.
Inflorescence solid, a panicle. Panicle oblong, 1–2 cm long.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, oblong, laterally compressed, 7–10 mm
long.
Glumes. Glumes
similar, thinner than fertile lemma. Lower glume ovate, membranous, much
thinner on margins, without keels, 3 -nerved. Upper glume ovate, 3.5 mm long,
membranous, without keels, 3 -nerved. Upper glume apex dentate.
Florets.
Fertile lemma 7–10 mm long, without keel, 3 -nerved. Lemma apex lobed. Palea 2
-nerved. Palea apex lobed, awned. Anthers 3.
Continental
Distribution: Australasia.
Australian
Distribution: Western Australia.
Western Australia:
Irwin, Drummond, Dale, Menzies, Warren, Eyre, Roe.
