Vachellia aroma(Gillies ex Hook. & Arn.) Seigler & Ebinger

WFO wfo-0001277405 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Vachellia aroma, photographed by Jose Luis Navarro
fig. a Jose Luis Navarro, CC BY 4.0 / 2022-04-30 / obs. 197099419
Vachellia aroma, photographed by Jose Luis Navarro
fig. b Jose Luis Navarro, CC BY 4.0 / obs. 197097069
Vachellia aroma, photographed by Pablo H Capovilla
fig. c Pablo H Capovilla, CC BY 4.0 / obs. 180142394
Vachellia aroma, photographed by Nicolas Olejnik
fig. d Nicolas Olejnik, CC BY 4.0 / obs. 176496904
Vachellia aroma, photographed by María Zeta
fig. e María Zeta, CC BY 4.0 / obs. 174837128
Vachellia aroma, photographed by Eduardo Luis Beltrocco
fig. f Eduardo Luis Beltrocco, CC BY 4.0 / obs. 169325858
Vachellia aroma, photographed by Tomás Carranza Perales
fig. g Tomás Carranza Perales, CC BY 4.0 / obs. 179674281
Vachellia aroma, photographed by Tomás Carranza Perales
fig. h Tomás Carranza Perales, CC BY 4.0 / obs. 179666606

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 6 botanical countries

Regions where Vachellia aroma is native: Argentina Northeast, Argentina Northwest, Bolivia, Ecuador, Paraguay, Peru Argentina NortheastArgentina NorthwestBoliviaEcuadorParaguayPeru
Native distribution of Vachellia aroma, 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
Argentina Northeast AGE SOUTHERN AMERICA
Argentina Northwest AGW
Bolivia BOL
Ecuador ECU
Paraguay PAR
Peru PER

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 70 in flower of 195 examined

Peak flowering in Nov. Each bar is the share of Vachellia aroma 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. 70 of 195 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 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 530 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 2.9 °C 7.0 °C 12.3 °C
Warmest month, mean daily high 22.3 °C 29.6 °C 33.3 °C
Annual rainfall 159 mm 921 mm 1,485 mm
Rainfall in the driest quarter 9 mm 30 mm 141 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 530 research-grade observations of Vachellia aroma 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 19 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 aroma Gillies ex Hook. & Arn.
  • Acacia aroma var. cochlearis Griseb.
  • Acacia aroma var. huarango (Ruiz ex J.F.Macbr.) Ebinger, Seigler & H.D.Clarke
  • Acacia aroma var. moniliformis (Griseb.) Hieron.
  • Acacia huarango Ruiz ex J.F.Macbr.
  • Acacia lutea var. aroma (Gillies ex Hook. & Arn.) Kuntze
  • Acacia lutea var. moniliformis (Griseb.) Kuntze
  • Acacia michelii Rusby
  • Acacia moniliformis Griseb.
  • Vachellia aroma var. huarango (Ruiz ex J.F.Macbr.) Seigler & Ebinger
  • Vachellia lutea f. aroma (Gillies ex Hook. & Arn.) Speg.
  • Vachellia lutea f. leptocarpa Speg.
  • Vachellia lutea f. moniliformis (Griseb.) Speg.
  • Vachellia lutea f. oocephala Speg.
  • Vachellia lutea f. pachycarpa Speg.
  • Vachellia lutea f. pachycarpa Speg.
  • Vachellia lutea f. thlipsacantha Speg.
  • Vachellia lutea var. aroma (Gillies ex Hook. & Arn.) Speg.
  • Vachellia lutea var. moniliformis (Griseb.) Speg.

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. 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.