Cyperus mirus—Mirus Sedge—CYPERACEAE

Cyperus mirus

Link to Images on Flickr.

Habitat—Grows in rainforest and other moist shady habitats, including gardens.

Distribution— North from the Sydney region in New South Wales and into Queensland.

Description—Small, densely tufted perennial.

Local occurrences

Brown's Creek Bicentennial Gardens, Great Lakes College-Forster Campus, Red Head, The Cape Hawke and Wingham Brush.

Leaves.—Culms filiform, terete to trigonous, smooth, to 55 cm long, c. 0.5 mm diam. Leaves not septate-nodulose, usually shorter than culms, filiform.

Cyperus mirus
Cyperus mirus

Inflorescence.—A sessile digitate cluster to 20 mm diam. of 1–5 spikelets, without branches; involucral bracts leaf-like, 2–4 much exceeding inflorescence. Spikelets flattened, 3–14 mm long, 1.5–2 mm wide in side view, 5–30-flowered; rachilla not winged, persistent. Glumes acuminate, excurved, with sides 1–3-nerved, c. 2 mm long, whitish to pale brown. Stamens 3. Style 3-fid.

Flowering.—Spring to Summer.

Fruit.—Nut trigonous, obovoid to ellipsoid, half to two-thirds as long as glume, c. 0.8 mm long, c. 0.7 mm diam., trabeculate and striate, black.

Ripe.—Summer to Autumn