Western Australian Flora Statistics
2008 Vascular Flora Statistics

Table 1. Analysis of the size of vascular plant divisions for various categories of name; data sourced on 1 June 2008.
Category Pteridophytes Gymnosperms Monocots Dicots* Total
Total names A 141 34 3,591 15,511 19,277
Non-current names B 36 10 1,035 3,937 5,018
Current names C 105 24 2,556 11,574 14,259
Current taxa D 98 24 2,412 10,608 13,142
Current species E 96 24 2,250 9,600 11,970
Manuscript names F 0 0 39 335 374
Phrase names G 0 0 211 975 1,186
Published species H 96 24 2,024 8,464 10,608
Published alien species I 8 7 345 811 1,171
Published native species J 88 17 1,679 7,653 9,437
  • 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)


A brief comparison of the 2008 data with the previous year (2007).

  • the addition of 808 names to the Census of Western Australian Plants database;
  • a decrease (-65) in the number of manuscript names in current use, down to 374, most likely due to the excellent publication output in the last year combined with the conversion of many manuscript names to phrase names as part of the Australian Plant Census project;
  • a concomitant increase (+90) in the number of phrase names in current use, up to 1186;
  • a significant increase in the number of published species, up 234 (214 native and 20 alien) to 10,608 species, due in part to the publication of two issues of the Science Division journal Nuytsia late last year, including the special BCI-SOS 'banded ironstone' issue.

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 2008.

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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).