Fimbristylis ferruginea (L.) Vahl, it is a biennial or perennial glabrous herb. Stems densely tufted, up to 15-80 cm long, erect, rigid. Leaves few, short, hairy or glabrous, lamina narrow, linear usually shorter than the sheath. Leafy bracts 3-5, shorter than the umbel or at least the inferior one exceeding the inflorescence, Umbel simple or compound. Spikelets few 5-10, sometimes reduced to 1 or 2, dark or light in colour, varying in size, ± 8-15 x 4 mm. oblong densely flowered. Rachis not winged, erect, glabrous. Inferior sterile glumes narrow, pubescent prolonging into a green ciliate, scabrous aristule. Superior fertile glumes large, ovate, yellow at the base. pubescent and dense towards the inferior half, obovate, sub-acute at the top, the inferior often mucronate, uninerved, weekly keeled c. 4 mm long. Stamens 3, anthers linear c. 1 mm. Style long, flattened, values on the margins, dilated at the base. Stigmas 2, linear-lanceolate. Achene nearly 1̸2 the length of the glume, obovate, biconvex, smooth, pale-yellow becoming brown.
Flowering in: May-Nov.
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