Seeds of South Australia
Ceratophyllum demersum (Ceratophyllaceae)
Hornwort
List of species for Ceratophyllum
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Herbarium regions:
Murray, Southern Lofty, South Eastern
NRM region:
South Australian Murray-Darling Basin
IBRA regions
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(i,ii))   [edge of range; limited habitat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [possibly introduced]
Murray Mallee (MDD02)Murray Darling Depression
 Vulnerable   (IUCN: VU B2ab(i,ii,iii,iv))   (Definite Decline)   [habitat quality & loss are issues]
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(ii))
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Ceratophyllum]