Western Australian Flora Statistics
2013 Vascular Flora Statistics

Table 1. Analysis of the size of vascular plant divisions for various categories of name; data sourced on 1 June 2013.
Category Pteridophytes Gymnosperms Monocots Dicots* Total
Total names A 142 39 3,789 16,591 20,561
Non-current names B 34 14 1,131 4,730 5,909
Current names C 108 25 2,658 11,861 14,652
Species with infraspecies K 8 0 147 958 1,113
Current taxa D 100 25 2,511 10,903 13,539
Current alien taxa 8 8 362 854 1,232
Current native taxa 92 17 2,149 10,049 12,307
Current species E 98 25 2,352 9,933 12,408
Current alien species 8 8 354 842 1,212
Current native species 90 17 1,998 9,091 11,196
Manuscript names F 0 0 24 73 97
Phrase names G 0 0 264 1,143 1,407
Published species H 98 25 2,089 8,842 11,054
Published alien species I 8 8 354 840 1,210
Published native species J 90 17 1,735 8,002 9,844
Named hybrids L 0 0 27 33 60
Un-named hybrids 0 0 2 18 20
  • The term taxa here refers to entities at species level and below
  • The term species refers only to those entities at species rank
  • * The term dicot is here used in its traditional sense to retain compatibility with previous tables and for ease of use. ‘Dicotyledons’ is now strictly a paraphyletic assemblage of the Nymphaeales, ‘magnoliids’ and ‘eudicot’ clades (cf. New Systematic Sequence)

Highlights

A brief comparison of the 2013 data with the previous year (2012).

  • the addition of 283 vascular plant names to the Census of Western Australian Plants database;
  • there are 58 additional taxa recognised as occurring in the State: 50 native taxa and 8 naturalised taxa;
  • the number of published species rose by 105 to 11,054, including 97 native species and 8 naturalised species;
  • a significant decrease in the number (-94) of manuscript names in current use, down to 97, continuing the trend of the last 5 years, due either to their formal publication or their conversion to phrase names as part of the Australian Plant Census project;
  • a considerable increase (+41) in the number of phrase names in current use, up to 1,407;
  • therefore, for the third year in succession, there has been a decrease (-53) in the number of putative taxa yet to be researched and published, from 1,557 in 2012 to 1,504.

Compiler’s Note

While the current contents are manual concatenations of census data, or static tables drawn from recent published works, it is intended that future versions of this page will contain live flora statistics drawn directly from the constantly maintained datasets held at the Western Australian Herbarium. At that time we would also seek to disseminate the standard logic behind the accurate calculation of these statistics. In this way, not only will the latest figures be available at all times, but the correct methodology for calculating and applying those figures will become better understood.

Compiled by Alex Chapman; last updated on 1 June 2013.

Related content

Did you notice?

There is a diminishing relationship between figures in subsequent rows of the table, as figures in each category are subtracted from the ones above. For example: in each column: A − B = C.

Highlighted rows

Highlighted rows are the recommended figures if you need:

  • to cite the actual number of known entities in WA (D), or
  • a conservative estimate of the number of well-documented species (H).