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

Bridgewater (NCP01)	Naracoorte Coastal Plain	Least Concern   (Probable Increase)   [increasing in drains]
Kangaroo Island (KAN01)	Kanmantoo	Rare   (IUCN: RA d(i,ii))   [limited habitat]
Southern Yorke (EYB01)	Eyre Yorke Block	Least Concern   [undercollected]
St Vincent (EYB02)		Least Concern   [undercollected]
Eyre Hills (EYB03)		Near Threatened   [esturine spp]
Talia (EYB04)		Least Concern   [esturine spp]
Eyre Mallee (EYB05)		Near Threatened   [esturine spp]
Murray Mallee (MDD02)	Murray Darling Depression	Rare   (IUCN: RA d(i,ii))   [no records; in salt lakes]
Murray Lakes and Coorong (MDD03)		Least Concern
Gawler Lakes (GAW03)	Gawler	Near Threatened   [esturine spp]

Prior names

Ruppia spiralis, partly

Common names

Tuberous Water-tassel

Widgeon Grass

Distribution and status

Herbarium regions: Eyre Peninsula, Northern Lofty, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern, Green Adelaide
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South East
AVH map: SA distribution map (external link)