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Cyperus pilosus Vahl
Family Cyperaceae
Cyperus pilosus Vahl APNI*

Description: Rhizomatous perennial.

Culms solitary, triquetrous, winged above, smooth or scabrous, 30–100 cm high, to 6 mm diam.

Leaves not septate-nodulose, shorter than to as long as culms, 4–12 mm wide. Inflorescence compound, with 3–10 primary branches to 15 cm long, or rarely subglobose; spikes ovoid to cylindrical, 2–3 cm long, 1–2 cm diam., with densely hispid rachis; involucral bracts leaf-like, 3–5 much longer than inflorescence. Spikelets flattened, 6–25 per spike, 6–12 mm long, 1.5–2.5 mm wide in side view, 7–40-flowered; rachilla not winged, persistent. Glumes obtuse, with sides 2- or 3-nerved, 2–2.5 mm long, c. 1.5 mm wide, straw-coloured to red-brown, with broad whitish margins above. Stamens 3. Style

Nut triquetrous, obovoid to ellipsoid, about two thirds as long as glume, 1–1.3 mm long, 0.5–0.8 mm diam., dark brown to black.


Flower
Photo J. & P. Edwards

Flowering: spring–summer.

Distribution and occurrence: Grows in swampy areas in sandy coastal heath; north from Grafton region.
NSW subdivisions: NC
Other Australian states: Qld
AVH map***

Text by K. L. Wilson (1993); edited KL Wilson (Aug 2009)
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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