Scleria rugosa R.Br. APNI*
Description: Slender tufted annual.
Culms obliquely erect or decumbent, glabrous or villous, 5–20 cm high, 0.5–1.5 mm diam. Leaves glabrous to densely villous, 2–4 mm wide; contraligule short.
Inflorescence narrow, to 30 cm long, much longer than culm, consisting of several distant clusters. Spikelets unisexual; male spikelets 1–2 mm long; female spikelets 3–4 mm long.
Nut-bearing glumes acute, mucronulate, 3–4 mm long, usually long-ciliate at least on midrib or rarely glabrous, green to pale brown. Stamen 1; anther 0.5–0.7 mm long. Disk thick (c. 0.8 mm long), appressed, shallowly 3-lobed, white or pale brown, minutely papillose or colliculate; lobes obtuse. Nut terete, globose or slightly depressed, shorter than glumes, 1.3–2 mm diam., smooth or ± wrinkled to pitted especially in upper half, often ± tuberculate above, shining, white or grey.
Distribution and occurrence: Grows in woodland and low forest, on sandy soils; north from Grafton.
NSW subdivisions: NC
Other Australian states: Qld W.A. N.T.
The glumes are mostly glabrous in N.S.W. specimens. The disk has also been described as red gland-dotted, but it is not certain that the cells are glandular and the surface is only occasionally reddish.
Text by K. L. Wilson
Taxon concept: Flora of NSW 4 (1993)
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