Ectrosia schultzii Benth. Fl.
Austral. 7: 633 (1878).
Classification. (GPWG 2001) : Subfamily
Chloridoideae. Cynodonteae.
Type of Basionym or
Protologue Information: ST: F. Mueller s.n., Australia: between
Maurice and Victoria rivers
ST: Schultz 287,
Australia: Fort Darwin.
Key references
(books and floras): [1878] G.Bentham, Flora Australiensis 7 (633),
[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (89),
[2002] D.Sharp & B.K.Simon, AusGrass, Grasses of Australia.
Illustrations:
[1952] C.A.Gardner, Flora of Western Australia 1 Gramineae (90,
Pl. 25), [2005] K.Mallet (ed.), Flora of Australia 44B: Poaceae 3
(Fig. 77A-B).
Habit. Annual
or perennial. Culms erect, 25–60 cm tall, 2–3 -noded. Lateral branches simple.
Leaf-sheaths glabrous on surface. Ligule a fringe of hairs. Leaf-blades erect,
flat or involute or convolute, 10–23 cm long, 2–4.5 mm wide. Leaf-blade surface
scaberulous, glabrous or indumented.
Inflorescence.
Inflorescence compound, a panicle. Panicle oblong, 5–17 cm long, 1–2 cm wide.
Spikelets.
Spikelets pedicelled. Fertile spikelets 1 or more flowered, with 1 fertile
floret (1–3), comprising 1–3 fertile floret(s), with diminished florets at the
apex, linear or oblong, laterally compressed, 6–10 mm long.
Glumes. Glumes
similar. Lower glume lanceolate, membranous, keeled, 1-keeled, 1 -nerved. Upper
glume lanceolate, 2–3.1 mm long, membranous, keeled, 1-keeled, 1–3 -nerved.
Florets.
Fertile lemma 3–4 mm long, keeled, 3 -nerved. Lemma surface glabrous. Lemma
apex awned, 1 -awned. Median (principal) awn 3–6 mm long overall. Palea 2
-nerved. Anthers 3. Grain 1 mm long.
Continental
Distribution: Australasia.
Australian
Distribution: Western Australia, Northern Territory, Queensland.
Western Australia:
Gardner, Fitzgerald, Dampier. Northern Territory: Darwin & Gulf,
Victoria River, Central Australia North. Queensland: Burke, South
Kennedy, Mitchell.
Endemic.
Infra-specific
taxa: var. schultzii, var. annua.
Perennial; culms
1.5–2.2 mm wide; leaf blades 13–23 cm long E. schultzii var. schultzii
Annual; culms 0.7–1.5 mm
wide; leaf blades 3–13 cm long E. schultzii var. annua
