GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Neurachne queenslandica

HABIT Perennial; caespitose. Rhizomes short. Butt sheaths pilose. Culms erect, or decumbent; 20–40 cm long; 4–8 -noded. Culm-nodes bearded. Leaf-sheaths smooth; glabrous on surface, or pilose; outer margin glabrous. Ligule a fringe of hairs; 0.4–1 mm long. Collar glabrous. Leaf-blades filiform, or linear; flat, or involute; 3–21 cm long; 1–3 mm wide; stiff. Leaf-blade midrib indistinct. Leaf-blade surface scabrous; glabrous. Leaf-blade margins scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle spiciform; linear; 1–3.2 cm long. Primary panicle branches accrescent to a central axis; with lateral stumps on axis. Panicle axis with rounded ribs; glabrous, or pubescent.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels oblong; 0.5–1 mm long; glabrous, or pubescent; tip discoid.

FERTILE SPIKELETS Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets lanceolate, or elliptic; dorsally compressed; 5.3–8 mm long; falling entire. Spikelet callus bearded; base obtuse; attached transversely.

GLUMES Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 4.8–7 mm long; 0.8–0.9 length of spikelet; chartaceous; much thinner on margins; without keels; 5 -veined. Lower glume lateral veins ribbed. Lower glume surface setose. Lower glume apex acuminate. Upper glume lanceolate; 5.3–8 mm long; 1 length of spikelet; chartaceous; with membranous margins; 9 -veined. Upper glume lateral veins ribbed. Upper glume surface setose; hairy below. Upper glume margins ciliate. Upper glume apex acuminate.

FLORETS Basal sterile florets barren; without significant palea. Lemma of lower sterile floret elliptic; 3.7–5.3 mm long; 0.6–0.7 length of spikelet; membranous; 7 -veined; scabrous; rough on veins; puberulous and setose; ciliate on margins; acute. Fertile lemma elliptic; 3.7–5.3 mm long; hyaline; without keel. Lemma apex acute. Palea hyaline; without keels.

FLOWER Anthers 3; 3.6–4.2 mm long.

DISTRIBUTION Australasia: Australia.

NOTES Paniceae. Webster.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.