Isolepis subtilissima Boeckeler APNI* 
Description: Small perennial with short filiform rhizome.
Culms filiform, to 10 cm high.
Leaves well-developed; blade to 9 cm long. Spikelets 1 or rarely to 3, 2–5 mm long; involucral bract exceeding inflorescence, to 2 cm long. Glumes usually obtuse, not mucronate, with several ill-defined nerves on sides, 0.8–1.3 mm long, straw-coloured tinged dark red-brown to mostly dark red-brown. Stamens 1 (rarely 2 or 3 in lower flowers); anthers 0.2–0.5 mm long. Style 3-fid.
Nut unequally trigonous, obovoid to broad-ellipsoid, nearly as long as glume, 0.7–1.1 mm long, 0.5–0.7 mm diam., minutely roughened, glistening, pale yellow to pale red-brown.
Flowering: spring–summer.
Distribution and occurrence: Widespread on tablelands in moist places.
NSW subdivisions: NC, NT, CT, ST
Other Australian states: Qld Vic. Tas.
This is very close to I. habra differing from that species in being generally more slender, with somewhat longer rhizome, usually solitary spikelet, shorter glumes and more slender nut. These species need further study.
Text by K. L. Wilson
Taxon concept: Flora of NSW 4 (1993)
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