Vachellia vernicosa(Britton & Rose) Seigler & Ebinger

viscid acacia

WFO wfo-0001277463 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Vachellia vernicosa, photographed by Michelle W. （鍾偉瑋）
fig. a Michelle W. （鍾偉瑋）, CC BY 4.0 / 2022-06-05 / obs. 204245717
Vachellia vernicosa, photographed by Reid Hardin
fig. b Reid Hardin, CC BY 4.0 / obs. 199538271
Vachellia vernicosa, photographed by Daniel Estabrooks
fig. c Daniel Estabrooks, CC0 1.0 / obs. 144413459
Vachellia vernicosa, photographed by Daniel Estabrooks
fig. d Daniel Estabrooks, CC0 1.0 / obs. 144083340
Vachellia vernicosa, photographed by Brian Finzel
fig. e Brian Finzel, CC BY-SA 4.0 / obs. 174191598
Vachellia vernicosa, photographed by Francisco Martínez González
fig. f Francisco Martínez González, CC BY-SA 4.0 / obs. 146038441
Vachellia vernicosa, photographed by Francisco Martínez González
fig. g Francisco Martínez González, CC BY-SA 4.0 / obs. 127810717
Vachellia vernicosa, photographed by Eric Knight
fig. h Eric Knight, CC BY 4.0 / obs. 123287213

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 7 botanical countries

Regions where Vachellia vernicosa is native: Arizona, Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southwest, New Mexico, Texas ArizonaMexico CentralMexico NortheastMexico NorthwestMexico SouthwestNew MexicoTexas
Native distribution of Vachellia vernicosa, 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
Arizona ARI NORTHERN AMERICA
Mexico Central MXC
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southwest MXS
New Mexico NWM
Texas TEX

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 122 in flower of 139 examined

Peak flowering in May. Each bar is the share of Vachellia vernicosa 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. 122 of 139 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 4 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.

Also published as 5 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 constricta var. vernicosa (Standl.) L.D.Benson
  • Acacia constricta var. vernicosa (Standl.) Benson
  • Acacia neovernicosa Isely
  • Acacia vernicosa Standl.
  • Acaciopsis vernicosa Britton & Rose

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. USDA PLANTS Database. common name, checklist symbol VAVE. public domain. 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.