Key to symbols used in census

*indicates that the taxon has become naturalised in Victoria. An alien that has spread ‘beyond the possibility of extirpation’ (Mueller, 1853) is considered naturalised. This definition implies free reproduction in well established populations in restricted areas or throughout the State. For restricted populations, establishment for a minimum of 25 years has been used as a criterion (Tutin et al, 1964) unless obvious seedling recruitment is taking place and the population is persisting or spreading. Casuals (not persisting without fresh introduction) are not included in this category (definition after Kloot, 1987).
#indicates that the taxon is both native and naturalised in Victoria. In other words, an indigenous taxon has extended its geographical range of distribution beyond its known or suspected original distributional range.
indicates that the taxon is incipiently naturalised in Victoria. By this is meant that the taxon is known to be introduced in Victoria and represented by one or more populations but the extent of naturalisation is uncertain and there is doubt whether it has become truly naturalised yet. Taxa in this category demonstrate the potential to become truly naturalised.
indicates that the status of the taxon in Victoria is uncertain. It is uncertain whether all of the populations of the taxon are truly native in Victoria, whether all of the populations are introduced, or whether some of the populations are truly native and some are introduced. In the latter case, in some instances it may well be that the taxonomy of the group is unresolved and that what is treated currently as a single taxon actually represents more than one taxon and that these taxa include both truly native and introduced elements.
indicates a taxon that is endemic to Victoria.
indicates a new record for Victoria or a change in nomenclature since the publication of the taxonomic volumes of the Flora of Victoria (1994, 1996, 1999). Names mentioned in the ‘Additions and Corrections to Volumes 2 and 3’ published in volume 4 of the Flora are not designated with the symbol.
indicates that the taxon is of hybrid origin.

Rare and threatened codes

XPresumed extinct in Australia: taxa that either have not been found in recent years despite thorough searching, or have not been collected for at least 50 years and were known only from now intensively settled areas.
xPresumed extinct in Victoria: no post-1950 records from Victoria, in spite of field searches specifically for the plant, or intensive field searches (since 1950) at all known sites have failed to record the plant.
EEndangered in Australia: at serious risk of disappearing from the wild state within one or two decades if present land use and other causal factors continue to operate.
eEndangered in Victoria: rare or at risk of disappearing from the wild state if present land use and other causal factors continue to operate.
VVulnerable in Australia: not presently Endangered but at risk of disappearing from the wild over a longer period (20 to 50 years) through continued depletion, or which largely occur on sites likely to experience changes in land use that would threaten the survival of the taxon in the wild.
vVulnerable in Victoria; rare, not presently Endangered but likely to become so soon due to continued depletion; occurring mainly on sites likely to experience changes in land use that would threaten the survival of the plant in the wild; or taxa where total populations are so low that recovery from a local natural disturbance such as drought, landslip or fire is doubtful.
RRare in Australia: rare but overall not currently considered Endangered or Vulnerable. Such species may be represented by a relatively large population in a very restricted area or by smaller populations spread over a wider range, or by some intermediate combination of distribution pattern.
rRare in Victoria but not considered otherwise threatened. This category does not imply that the plants are substantially threatened, but merely that there are relatively few known populations.
KPoorly known in Australia: Suspected, but not definitely known, to belong to one of the categories X, E, V or R. At present accurate field distribution information is inadequate. This category applies only to taxa considered rare or threatened throughout Australia.
kPoorly known and suspected, but not definitely known, to belong to one of the categories x, e, v or r within Victoria. At present accurate field distribution information is inadequate.
aIntroduced species previously recorded from Victoria that are now believed to be absent, either through natural processes or through eradication programmes, have been given the prefix ‘a’ to indicate that they are now absent from Victoria. Previously such records had been deleted from the Census, but it has been thought that it may be beneficial to have some history of those taxa that have been recorded previously from Victoria.

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