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Plant Form Erect perennial sedge. Size Up to 50 cm tall. Stem Smooth, unjointed and triangular. Leaves Grass-like, glossy light green. V-shaped (in cross section) with finely serrated edges and a prominent mid-vein. Flowers A cluster of reddish or purplish brown spikelets which are on 3-9 flower stems. Fruit and Seeds Black brown, olive or grey. Oval-shaped with a beaked end. Habitat Cropland, grassland, pastures, gardens. Distinguishing Features Similar to Yellow nutgrass (Cyperus esculentus) but has purplish rather than yellowish flowers.