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Schoenus calyptratus Kuek.
Family Cyperaceae
Schoenus calyptratus Kuek. APNI*

Description: Dwarf rhizomatous perennial, often mat-forming.

Culms erect, flaccid, terete, striate, nodeless, to 2.5 cm long, c. 0.5 mm diam.

Leaves stiff, channelled, with blade to 4 cm long, much longer than culms; sheath dark red-brown, striate, shining; mouth glabrous; ligule present. Inflorescence erect, 0.7–1.1 cm long, of 1–4 spikelets in 2 clusters; lowest involucral bract to 4 cm long. Spikelets narrow-ovate, acute, 1- or 2-flowered, 3.5–5 mm long. Glumes 3 or 4, lowest 1 or 2 empty, narrow-ovate, acute, straw-coloured to red-brown, shining, with glabrous margins, midvein occasionally scabrous; fertile glumes 3–4 mm long. Bristles 6, not plumose, as long as or slightly exceeding nut. Stamens 3; anthers 1–2 mm long.

Nut trigonous, ellipsoid, 1.2–1.9 mm long, 0.7–1.1 mm diam., 3-ribbed, minutely reticulate-pitted or smooth, shining or glistening, straw-coloured.

Flowering: summer.

Distribution and occurrence: Grows in alpine herbfields, sometimes forming extensive short turf in the Kosciusko area.
NSW subdivisions: ST
Other Australian states: Vic. Tas.
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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