Regional Species Conservation Assessments per IBRA subregion.

Least concern

Near threatened

Rare

Vulnerable

Endangered

Critically endangered

Extinct

Data deficient

Adelaide

Arkaroola

Ceduna

Coober Pedy

Hawker

Innamincka

Marla

Marree

Mount Gambier

Oodnadatta

Renmark

Wudinna

Keith

Yunta

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IBRA regions

LEGEND

Northern Flinders (FLB05)	Flinders Lofty Block	Rare   (IUCN: )
Murray Mallee (MDD02)	Murray Darling Depression	Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Murray Scroll Belt (RIV06)	Riverina	Rare   (IUCN: RA d(ii))   (Probable Decline)
Kintore (GVD04)	Great Victoria Desert	Rare   (IUCN: RA d(ii))   [ephemeral; abundant in a wet year]
Tallaringa (GVD05)		Rare   (IUCN: RA d(ii))   [ephemeral; abundant in a wet year]
Breakaways (STP01)	Stony Plains	Rare   (IUCN: RA d(ii))   [ephemeral; abundant in a wet year]
Oodnadatta (STP02)		Rare   (IUCN: RA d(ii))   [ephemeral; abundant in a wet year]
Sturt Stony Desert (CHC02)	Channel Country	Rare   (IUCN: RA d(ii))   [ephemeral; abundant in a wet year]

Botanical art

Kath Alcock painting: 1

Prior names

Rikliella australiensis

Hypaelyptum microcephalum

Lipocarpha microcephala

Common names

Button Rush

Etymology

Greek 'liparos' shining, 'karphos' chaff and 'micro' small, 'cephale' head.

Distribution and status

Grows in open damp places such as sandy stream banks. Native
Herbarium regions: North Western, Flinders Ranges, Murray
AVH map: SA distribution map (external link)

Plant description

Annual, with slender stems and filiform basal leaves. Inflorescence of 1-4 ovoid spikes. Spikelets oblong-obovate, 1-1.7mm long, pale brown often tinged red-brown. Flowering March-April. Fruits are nut subterete, very narrow-ellipsoid, 0.7�1 mm long, 0.2 mm in diameter, pale brown.