Acacia parramattensisTindale

South Wales wattle

WFO wfo-0000185351 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Acacia parramattensis, photographed by Thomas Mesaglio
fig. a Thomas Mesaglio, CC BY 4.0 / 2021-09-08 / obs. 156038828

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 1 botanical country

Regions where Acacia parramattensis is native: New South Wales New South Wales
Native distribution of Acacia parramattensis, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
New South Wales NSW AUSTRALASIA

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 79 in flower of 166 examined

Proportion of examined Acacia parramattensis in flower, by month
Month In flower Examined Share 95% interval
Jan 16 17 94% 73% to 99%
Feb 4 8 50% 22% to 78%
Mar 1 2 too few examined
Apr 0 4 too few examined
May 1 8 13% 2% to 47%
Jun 0 6 0% 0% to 39%
Jul 0 11 0% 0% to 26%
Aug 2 12 17% 5% to 45%
Sep 2 27 7% 2% to 23%
Oct 0 8 0% 0% to 32%
Nov 11 20 55% 34% to 74%
Dec 42 43 98% 88% to 100%

Peak flowering in Dec. Each bar is the share of Acacia parramattensis observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 79 of 166 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 2 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 554 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 3.0 °C 6.3 °C 9.8 °C
Warmest month, mean daily high 23.7 °C 26.6 °C 28.5 °C
Annual rainfall 824 mm 949 mm 1,203 mm
Rainfall in the driest quarter 139 mm 163 mm 218 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 554 research-grade observations of Acacia parramattensis that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 3 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Acacia sulcipes Sieber ex G.Don
  • Racosperma parramattense (Tindale) Pedley
  • Racosperma parramattensis (Tindale) Pedley

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.