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Lepidosperma sieberi Kunth
Family Cyperaceae
Lepidosperma sieberi Kunth APNI*

Description: Tufted perennial with short vertical rhizome. Culms rigid, erect, flat, or convex on one face, or concavo-convex, glabrous, smooth or striate, 20–60 cm high, 3–7 mm wide; margins scabrous or scaberulous, sharp.

Leaves similar in form to culms but usually shorter, 3–6 mm wide; sheath straw-coloured or rarely reddish near apex, dark yellow-brown to grey-brown at base, not viscid, ± dull.

Inflorescence ovate to oblong in outline, erect, ± dense, 3–15 cm long, 2–4 cm diam.; involucral bract shorter than inflorescence (rarely longer if inflorescence is depauperate). Spikelets numerous, 5–8 mm long. Glumes 6–8, puberulous, red-brown to grey-brown; 2 or 3 lowest empty, shorter than fertile glumes, obtuse to acute, mucronate; fertile 6–7 mm long, long-acute to acute. Scales 6, one-third to three-fifths the length of nut, whitish. Anthers 2.5–4.0 mm long, excluding appendage 0.3–1.0 mm long.

Nut ovoid to obovoid, 2.7–4.0 mm long, 1.3–1.8 mm diam., pale to dark brown, shining, smooth.


Flowering: Spring–summer.

Distribution and occurrence: Grows in heath, woodland and forest on sandy soils; mainly coastal areas, also Hilltop, and the Budawang Ra.
NSW subdivisions: NC, CC, SC, CT, ST
Other Australian states: Qld Vic. Tas. S.A.
AVH map***

This was long confused with L. concavum, which is a somewhat more robust species restricted to the Sydney coastal region. [The descirption here has yet to be finalised]

Text by K. L. Wilson (1993); edited KL Wilson Feb 2017)
Taxon concept: Flora of NSW 4 (1993) as L. concavum p.p.


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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