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Schoenus centralis Latz
Family Cyperaceae
Schoenus centralis Latz APNI*

Description: Tufted annual.

Culms erect, flaccid, ± terete, striate, nodeless or 1- or 2-noded, 4–20 cm long, 0.5–0.8 mm diam.

Leaves with blade to 15 cm long; sheath straw-coloured, often dark red-brown at base, ± striate, ± shining; mouth glabrous; ligule present. Inflorescence erect, narrow, 4–23 cm long, with 1–4 often very distant nodes, each with 2–6 spikelets; lowest involucral bract to 9 cm long. Spikelets narrow-ovate, acute, 4–6-flowered, 4–7 mm long. Glumes 5–8, lowest 1–3 empty, narrow-ovate, acute, straw-coloured with dark red-brown patches, shining, with glabrous margins, midvein often scabrous; fertile glumes 3.0–4.5 mm long. Bristles absent. Stamens 3; anthers 1.3–2.5 mm long.

Nut trigonous, obovoid to ellipsoid, 0.8–1.3 mm long, 0.5–0.8 mm diam., prominently 3-ribbed and narrowly winged at truncate apex, reticulate-pitted, glabrous, shining, whitish to pale brown with darker patches.


Habitat
Photo Karen L Wilson

Habit
Photo Karen L Wilson

Flowering: after rain.

Distribution and occurrence: Grows along drainage lines; apparently very sporadic: only known from Howell, Yetman and Bourke districts.
NSW subdivisions: NWS, NWP
Other Australian states: N.T. Qld W.A.
Threatened species: ROTAP: 3K
AVH map***

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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