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

Enlarge Map

•

Copy Map

Copy Map

Display IBRA region text

IBRA regions

LEGEND

Mount Gambier (SVP02)	Southern Volcanic Plain	Rare   (IUCN: RA d(ii))   [undercollected]
Lucindale (NCP03)	Naracoorte Coastal Plain	Rare   (IUCN: RA d(ii))   [undercollected]
Fleurieu (KAN02)	Kanmantoo	Rare   (IUCN: RA d(i,ii))
Mount Lofty Ranges (FLB01)	Flinders Lofty Block	Rare   (IUCN: RA d(i,ii))
Murray Mallee (MDD02)	Murray Darling Depression	Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [undercollected; very tiny plant]
Murray Lakes and Coorong (MDD03)		Rare   (IUCN: RA d(ii))   [undercollected]

Botanical art

Kath Alcock paintings: 4

Prior names

Wolffia arrhiza var. australiana

Wolffia arrhiza

Common names

Tiny Duckweed

Distribution and status

Herbarium regions: Murray, Southern Lofty, South Eastern, Green Adelaide
AVH map: SA distribution map (external link)