Dichelachne parva B.K. Simon. Austrobaileya 1:462(1982).
Classification. (GPWG 2001) : Subfamily Pooideae. Tribe Poeae.
Type of Basionym or
Protologue Information: LT: Blake 4600, Australia:
Queensland:
near Wyberba (BRI-61721 left-hand specimen). LT designated by Jacobs et al., Telopea
5: 325–326 (1993).
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia,
[2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses of New South
Wales (210), [2009] A.Wilson (ed.). Flora of Australia, Vol 44A. Poaceae 2
(216).
Illustrations:
[2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South
Wales, 4th edn (210).
Habit.
Perennial. Culms erect or geniculately ascending, 15–80 cm tall, 2 -noded.
Mid-culm internodes glabrous. Mid-culm nodes glabrous. Lateral branches simple.
Leaves mostly basal. Leaf-sheaths smooth or scaberulous, glabrous on surface.
Ligule an eciliate membrane, 0.5–1 mm long, bilobed. Leaf-blades 4–20 cm long,
1–2.5 mm wide. Leaf-blade surface glabrous or indumented.
Inflorescence.
Inflorescence compound, a panicle. Panicle ovate, 3–28 cm long, 1–2 cm wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1-flowered, comprising 1 fertile
floret(s), without rachilla extension, lanceolate, laterally compressed,
3.5–5.5 mm long.
Glumes. Glumes
similar, thinner than fertile lemma. Lower glume lanceolate, membranous, much
thinner on margins, keeled, 1-keeled, 1 -nerved. Lower glume apex muticous.
Upper glume lanceolate, 2.8–5.5 mm long, membranous, keeled, 1-keeled, 1
-nerved.
Florets.
Fertile lemma 2.8–4.5 mm long, keeled, 5 -nerved. Lemma apex dentate, awned, 1
-awned. Median (principal) awn subapical, 6.5–15 mm long overall, with a
twisted column. Lodicules present. Anthers 3. Grain 3 mm long.
Continental
Distribution: Australasia.
Australian
Distribution: Queensland, New South Wales.
Queensland:
Darling Downs. New
South Wales: Central
Coast, Central
Tablelands, Southern Tablelands, South-Western Slopes.
Notes. Most closely
related to D. inaequiglumis.
Endemic. Northern Vic., central
coast, central and southern tablelands and SW slopes, N.S.W. and the Darling
Downs district, Qld. Mostly on better soils or in damp sites on sandstone or
granite, usually in woodland.
