Cyperochloa hirsuta M. Lazarides & L. Watson. Brunonia 9: 216 (1986).
Classification. (GPWG 2001) : Subfamily Arundinoideae. Tribe
'Cyperochloeae'. Cyperochloeae.
Type of Basionym or
Protologue Information: Australia:
Western Australia: Esperance Botanical Region
(Barlow 1986): 8 km W of Bluff Knoll, Stirling
Range, 20 Oct 1983, Keighery 7011
(HT: PERTH; IT:
CANB, K).
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia.
Habit.
Perennial. Rhizomes present, elongated. Culms 7–50 cm tall, wiry. Mid-culm
internodes solid. Lateral branches simple. Ligule a fringe of hairs, 0.6–0.8 mm
long. Leaf-blades filiform, involute or convolute, 3–7 cm long, 0.8–2 mm wide.
Leaf-blade surface scabrous.
Inflorescence.
Inflorescence digitate, of only a few spikelets. Peduncle brief, the
infloresence subsessile. Panicle 1–1.5 cm long.
Spikelets.
Spikelets sessile. Fertile spikelets many flowered, with at least 2 fertile
florets (4–9), comprising 4–9 fertile floret(s), with diminished florets at the
apex, ovate, laterally compressed, 7–9 mm long.
Glumes. Glumes
similar. Lower glume ovate, membranous or cartilaginous, without keels or
keeled, 1-keeled, 3–5 -nerved. Lower glume surface indumented. Upper glume
ovate, 2.6–3.6 mm long, membranous or cartilaginous, keeled, 1-keeled, 3–5
-nerved. Upper glume surface smooth or asperulous, indumented.
Florets.
Fertile lemma 3.5–5 mm long, keeled, 5–7 -nerved. Lemma surface indumented.
Lodicules present. Anthers 3. Grain 1.5–2 mm long.
Continental
Distribution: Australasia.
Australian
Distribution: Western Australia.
Western Australia: Eyre.
Notes.
W.A. endemic, known from the Fitzgerald
River and Stirling Ranges
National Parks, sandy
depressions, often seasonally waterlogged, in mallee country. Flowers Oct. to
Nov.
