Vachellia macracantha

{{Short description|Species of legume}}

{{speciesbox

|image = Acacia macracantha.png

|status = LC

|status_system = IUCN3.1

|status_ref = {{cite iucn |author=IUCN SSC Global Tree Specialist Group |author2=Botanic Gardens Conservation International (BGCI) |year=2020 |title=Vachellia macracantha |page=e.T152908301A152908303 |doi=10.2305/IUCN.UK.2020-1.RLTS.T152908301A152908303.en |access-date=22 November 2022}}

|taxon = Vachellia macracantha

|authority = (Humb. & Bonpl. ex Willd.) Seigler & Ebinger

|synonyms_ref = {{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:60441223-2#synonyms |title=Vachellia macracantha (Humb. & Bonpl. ex Willd.) Seigler & Ebinger |author= |date=2017 |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=21 December 2020 }}

|synonyms = {{collapsible list|

• Acacia cowellii (Britton & Rose) León
• Acacia flexuosa var. ambigua DC.
• Acacia flexuosa var. lasiocarpa Griseb.
• Acacia humboldtii Desv.
• Acacia lutea (Mill.) Britton
• Acacia macracantha Humb. & Bonpl. ex Willd.
• Acacia macracantha var. glabra Kitan.
• Acacia macracantha var. glabrescens Griseb.
• Acacia macracanthoides Bertero ex DC.
• Acacia microcephala Macfad.
• Acacia obtusa Humb. & Bonpl. ex Willd.
• Acacia pellacantha Vogel
• Acacia platyacantha Schltdl.
• Acacia punctata Humb. & Bonpl. ex Willd.
• Acacia subinermis Bertero ex DC.
• Mimosa atomaria Poir.
• Mimosa lutea Mill.
• Mimosa macracantha (Humb. & Bonpl. ex Willd.) Poir.
• Mimosa obtusa Poir.
• Mimosa pellacantha Meyen
• Poponax cowellii Britton & Rose
• Poponax lutea (Mill.) Britton & Rose
• Poponax macracantha (Humb. & Bonpl. ex Willd.) Killip
• Poponax macracanthoides (Bertero ex DC.) Britton & Rose
• Vachellia lutea (Mill.) Speg.

}}}}

Vachellia macracantha is a species of tree in the family Fabaceae. Its native range spans from southern Florida to South America.{{Cite book|title=Dictionary of Trees, Volume 2: South America: Nomenclature, Taxonomy and Ecology|last1=Grandtner|first1=M. M.|last2=Chevrette|first2=Julien|date=2013|publisher=Academic Press|isbn=9780123969545|pages=6|language=en}}{{Cite book|title=Trees of Eastern North America|last1=Nelson|first1=Gil|last2=Earle|first2=Christopher J.|last3=Spellenberg|first3=Richard|date=2014|publisher=Princeton University Press|isbn=9781400852994|pages=268|language=en}}