Cyperus eglobosus—Sedge—CYPERACEAE

Cyperus eglobosus

Link to Images on Flickr.

Habitat—Grows in littoral rainforest and woodland behind coastal dunes, on sandy soil.

Distribution— Occurs north from Jervis Bay in New South Wales and into Queensland.

Description—Small tufted perennial sedge, occasionally proliferating.

Local occurrences

Black Head, Black Head Flora Park, Brown's Creek Bicentennial Gardens, Diamond Beach, Diamond Beach LRF, One Mile Beach, Red Head and Tiona Park

Leaves.—Culms trigonous to terete, smooth, to 50 cm high, c. 1 mm diam. Leaves not septate–nodulose, shorter that culms, to 1.5 mm wide.

Cyperus eglobosus
Cyperus eglobosus

Inflorescence.—A digitate cluster to 20 mm diam. of 4 to 25 spikelets, without branches, or rarely a solitary spikelet; involucral bracts leaf–like, 2 or 3 much longer than inflorescence. Spikelets flattened, 5 to 16 mm long, c. 2 mm wide in side view, 6 to 28 flowered; rachilla narrowly winged, persistent. Glumes acute, with sides 2 or 3–nerved, 1.5 to 1.7 mm long, whitish to pale brown. Stamens 3. Style 3–fid.

Flowering.—Throughout the year

Fruit.—Nut trigonous, ellipsoid to broadly ellipsoid, not much shorter than glume, c. 1 mm long, c. 0.8 mm diam., dark yellow-brown

Ripe.—Throughout the year