Cyperus procerus Rottb. APNI* Synonyms: Cyperus ornatus R.Br. APNI*
Description: Perennial with long rhizome. Culms solitary, triquetrous, smooth, winged and scabrous above, 70–120 cm high, 4–8 mm diam.
Leaves not septate-nodulose, shorter than culms, 4–10 mm wide.
Inflorescence simple or subcompound, rarely subglobose, with 3–7 primary branches to 15 cm long; spikes broad-ovoid, 2–4 cm long and diam. with rachis mostly hispid; involucral bracts leaf-like, 2–4 much exceeding the inflorescence. Spikelets flattened, 3–15 per spike, 10–35 mm long, 2.5–3.5 mm wide in side view, to 36-flowered; rachilla not or scarcely winged, persistent. Glumes obtuse, with sides c. 3-nerved, 2.5–3 mm long, c. 2 mm wide, red-brown with broad whitish margins above. Stamens 3. Style 3-fid.
Nut triquetrous, obovoid or ellipsoid, about half as long as glume, c. 1.5 mm long, c. 0.7 mm diam., blackish brown.
Flowering: spring–summer.
Distribution and occurrence: Grows in swamps and seasonally wet sites; scattered chiefly north from Lismore, rare in Sydney region.
NSW subdivisions: NC, CC
Other Australian states: Qld N.T.
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.
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