Cyperus gilesii Benth. APNI*
Description: Slender tufted annual or perennial.
Culms trigonous or triquetrous, smooth, 10–35 cm high, 0.8–2 mm diam.
Leaves ± septate-nodulose, shorter than culms, to 4.5 mm wide. Inflorescence simple with 1–5 branches to 6 cm long; clusters subdigitate, rather dense, hemispherical to globose, to 50 mm diam.; involucral bracts leaf-like, 1–3 exceeding inflorescence. Spikelets flattened, numerous per cluster, 10–30 mm long, 2.5–4.5 mm wide in side view, 8–34-flowered; rachilla not to broadly winged; glume spacing 1.0–1.5 mm; spikelet falling as a unit, or rachilla persistent. Glumes retuse or acute with excurved mucro to 1 mm long, with sides 2- or 3-nerved, 3–5 mm long, golden brown to red-brown. Stamens 3. Style 3-fid.
Nut trigonous, very narrow-ellipsoid, two-thirds to three-quarters as long as glume, 2.0–2.5 mm long, 0.3–0.5 mm diam., red-brown to grey-brown.
Distribution and occurrence: Grows in ephemerally wet situations, such as inland stream banks and roadside drains; west of Brewarrina and north of White Cliffs.
NSW subdivisions: NWS, NWP, NFWP
Other Australian states: Qld S.A.
Text by K. L. Wilson
Taxon concept: Flora of NSW 4 (1993)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.