# Vachellia

Vachellia Wight & Arn., 1834 è un genere di piante angiosperme della famiglia delle Fabacee che comprende oltre 150 specie.
Il nome del genere è un omaggio al sacerdote e botanico britannico rev. George Harvey Vachell (1799-1839).

## Distribuzione e habitat

Il genere ha un areale pantropicale, che si estende dalle Americhe, all'Africa, all'Asia e all'Oceania.

## Tassonomia

Le specie di questo genere erano in passato attribuite al genere Acacia (sottogenere Acacia).
Il genere Vachellia comprende le seguenti specie:
* Vachellia abyssinica (Hochst. ex Benth.) Kyal. & Boatwr.
* Vachellia acuifera (Benth.) Seigler & Ebinger
* Vachellia albicorticata (Burkart) Seigler & Ebinger
* Vachellia allenii (D.H.Janzen) Seigler & Ebinger
* Vachellia amythethophylla (Steud. ex A.Rich.) Kyal. & Boatwr.
* Vachellia ancistroclada (Brenan) Kyal. & Boatwr.
* Vachellia anegadensis (Britton) Seigler & Ebinger
* Vachellia antunesii (Harms) Kyal. & Boatwr.
* Vachellia arenaria (Schinz) Kyal. & Boatwr.
* Vachellia aroma (Gillies ex Hook. & Arn.) Seigler & Ebinger
* Vachellia astringens (Gillies ex Hook. & Arn.) Speg.
* Vachellia azuana R.G.García, Clase, Ebinger & Seigler
* Vachellia baessleri H.D.Clarke, Seigler & Ebinger
* Vachellia barahonensis (Urb. & Ekman) Seigler & Ebinger
* Vachellia bavazzanoi (Pic.Serm.) Kyal. & Boatwr.
* Vachellia belairioides (Urb.) Seigler & Ebinger
* Vachellia bellula (Drake) Boatwr.
* Vachellia biaciculata (S.Watson) Seigler & Ebinger
* Vachellia bidwillii (Benth.) Kodela
* Vachellia bilimekii (J.F.Macbr.) Seigler & Ebinger
* Vachellia bolei (R.P.Subhedar) Ragup., Seigler, Ebinger & Maslin
* Vachellia borleae (Burtt Davy) Kyal. & Boatwr.
* Vachellia brandegeeana (I.M.Johnst.) Seigler & Ebinger
* Vachellia bravoensis (Isely) Seigler & Ebinger
* Vachellia bucheri (Vict.) Seigler & Ebinger
* Vachellia bullockii (Brenan) Kyal. & Boatwr.
* Vachellia burttii (Baker f.) Kyal. & Boatwr.
* Vachellia bussei (Harms ex Y.Sjöstedt) Kyal. & Boatwr.
* Vachellia californica (Brandegee) Seigler & Ebinger
* Vachellia campbellii (Arn.) A.Deshp. & Maslin
* Vachellia campeachiana (Mill.) Seigler & Ebinger
* Vachellia caurina (Barneby & Zanoni) Seigler & Ebinger
* Vachellia caven (Molina) Seigler & Ebinger
* Vachellia × cedilloi (L.Rico) Seigler & Ebinger
* Vachellia cernua (Thulin & A.S.Hassan) Kyal. & Boatwr.
* Vachellia chiapensis (Saff.) Seigler & Ebinger
* Vachellia choriophylla (Benth.) Seigler & Ebinger
* Vachellia clarksoniana (Pedley) Kodela
* Vachellia collinsii (Saff.) Seigler & Ebinger
* Vachellia constricta (Benth.) Seigler & Ebinger
* Vachellia cookii (Saff.) Seigler & Ebinger
* Vachellia cornigera (L.) Seigler & Ebinger
* Vachellia cucuyo (Barneby & Zanoni) Seigler & Ebinger
* Vachellia curvifructa (Burkart) Seigler & Ebinger
* Vachellia daemon (Ekman & Urb.) Seigler & Ebinger
* Vachellia davyi (N.E.Br.) Kyal. & Boatwr.
* Vachellia ditricha (Pedley) Kodela
* Vachellia dolichocephala (Harms) Kyal. & Boatwr.
* Vachellia douglasica (Pedley) Kodela
* Vachellia drepanolobium (Harms ex Y.Sjöstedt) P.J.H.Hurter
* Vachellia dyeri (P.P.Sw. ex Coates Palgr.) Kyal. & Boatwr.
* Vachellia eburnea (L.f.) P.J.H.Hurter & Mabb.
* Vachellia ebutsiniorum (P.J.H.Hurter) Kyal. & Boatwr.
* Vachellia edgeworthii (T.Anderson) Kyal. & Boatwr.
* Vachellia elatior (Brenan) Kyal. & Boatwr.
* Vachellia erioloba (E.Mey.) P.J.H.Hurter
* Vachellia erythrophloea (Brenan) Kyal. & Boatwr.
* Vachellia etbaica (Schweinf.) Kyal. & Boatwr.
* Vachellia exuvialis (I.Verd.) Kyal. & Boatwr.
* Vachellia farnesiana (L.) Wight & Arn.
* Vachellia fischeri (Harms) Kyal. & Boatwr.
* Vachellia flava (Forssk.) Kyal. & Boatwr.
* Vachellia flexuosa (Humb. & Bonpl. ex Willd.) Forero & C.Romero
* Vachellia gentlei (Standl.) Seigler & Ebinger
* Vachellia gerrardi (Benth.) P.J.H.Hurter
* Vachellia × gladiata (Saff.) Seigler & Ebinger
* Vachellia glandulifera (S.Watson) Seigler & Ebinger
* Vachellia globulifera (Saff.) Seigler & Ebinger
* Vachellia grandicornuta (Gerstner) Seigler & Ebinger
* Vachellia guanacastensis (H.D.Clarke, Seigler & Ebinger) Seigler & Ebinger
* Vachellia gummifera (Willd.) Kyal. & Boatwr.
* Vachellia haematoxylon (Willd.) Seigler & Ebinger
* Vachellia harala (Thulin & Al-Gifri) Ragup., Seigler, Ebinger & Maslin
* Vachellia harmandiana (Pierre) Maslin, Seigler & Ebinger
* Vachellia hebeclada (DC.) Kyal. & Boatwr.
* Vachellia hindsii (Benth.) Seigler & Ebinger
* Vachellia hockii (De Wild.) Seigler & Ebinger
* Vachellia horrida (L.) Kyal. & Boatwr.
* Vachellia hunteri (Oliv.) Ragup., Seigler, Ebinger & Maslin
* Vachellia inopinata (Prain) Maslin, Seigler & Ebinger
* Vachellia insulae-iacobi (L.Riley) Seigler & Ebinger
* Vachellia jacquemontii (Benth.) Ali
* Vachellia janzenii (Ebinger & Seigler) Seigler & Ebinger
* Vachellia johnwoodii (Boulos) Ragup., Seigler, Ebinger & Maslin
* Vachellia karroo (Hayne) Banfi & Galasso
* Vachellia kingii (Prain) Maslin, Seigler & Ebinger
* Vachellia kirkii (Oliv.) Kyal. & Boatwr.
* Vachellia koltermanii R.G.García, M.M.Mejía, Ebinger & Seigler
* Vachellia kosiensis (P.P.Sw. ex Coates Palgr.) Kyal. & Boatwr.
* Vachellia lahai (Steud. & Hochst. ex Benth.) Kyal. & Boatwr.
* Vachellia lasiopetala (Oliv.) Kyal. & Boatwr.
* Vachellia latispina (J.E.Burrows & S.M.Burrows) Kyal. & Boatwr.
* Vachellia leucophloea (Roxb.) Maslin, Seigler & Ebinger
* Vachellia leucospira (Brenan) Kyal. & Boatwr.
* Vachellia luederitzii (Engl.) Kyal. & Boatwr.
* Vachellia macracantha (Humb. & Bonpl. ex Willd.) Seigler & Ebinger
* Vachellia malacocephala (Harms) Kyal. & Boatwr.
* Vachellia mayana (Lundell) Seigler & Ebinger
* Vachellia mbuluensis (Brenan) Kyal. & Boatwr.
* Vachellia melanoceras (Beurl.) Seigler & Ebinger
* Vachellia myaingii (Lace) Maslin, Seigler & Ebinger
* Vachellia myrmecophila (R.Vig.) Boatwr.
* Vachellia natalitia (E.Mey.) Kyal. & Boatwr.
* Vachellia nebrownii (Burtt Davy) Seigler & Ebinger
* Vachellia negrii (Pic.Serm.) Kyal. & Boatwr.
* Vachellia nilotica (L.) P.J.H.Hurter & Mabb.
* Vachellia oerfota (Forssk.) Kyal. & Boatwr.
* Vachellia origena (Hunde) Kyal. & Boatwr.
* Vachellia ormocarpoides (P.J.H.Hurter) Kyal. & Boatwr.
* Vachellia oviedoensis (R.G.García & M.M.Mejía) Seigler & Ebinger
* Vachellia pacensis (Rudd & A.M.Carter) Seigler & Ebinger
* Vachellia pachyphloia (W.Fitzg) Kodela
* Vachellia pallidifolia (Tindale) Kodela
* Vachellia paolii (Chiov.) Kyal. & Boatwr.
* Vachellia pennatula (Schltdl. & Cham.) Seigler & Ebinger
* Vachellia pennivenia (Balf.f.) F.L.Anderson & Knees
* Vachellia permixta (Burtt Davy) Kyal. & Boatwr.
* Vachellia pilispina (Pic.Serm.) Kyal. & Boatwr.
* Vachellia planifrons (Wight & Arn.) Ragup., Seigler, Ebinger & Maslin
* Vachellia polypyrigenes (Greenm.) Seigler & Ebinger
* Vachellia prasinata (Hunde) Kyal. & Boatwr.
* Vachellia pringlei (Rose) Seigler & Ebinger
* Vachellia pseudofistula (Harms) Kyal. & Boatwr.
* Vachellia qandalensis (Thulin) Kyal. & Boatwr.
* Vachellia quintanilhae (Torre) Kyal. & Boatwr.
* Vachellia reficiens (Wawra & Peyr.) Kyal. & Boatwr.
* Vachellia rehmanniana (Schinz) Kyal. & Boatwr.
* Vachellia rigidula (Benth.) Seigler & Ebinger
* Vachellia robbertsei (P.P.Sw. ex Coates Palgr.) Kyal. & Boatwr.
* Vachellia robusta (Burch.) Kyal. & Boatwr.
* Vachellia roigii (León) Seigler & Ebinger
* Vachellia rorudiana (Christoph.) Seigler & Ebinger
* Vachellia ruddiae (D.H.Janzen) Seigler & Ebinger
* Vachellia × ruthvenii Seigler & Ebinger
* Vachellia schaffneri (S.Watson) Seigler & Ebinger
* Vachellia schottii (Torr.) Seigler & Ebinger
* Vachellia sekhukhuniensis (P.J.H.Hurter) Kyal. & Boatwr.
* Vachellia seyal (Delile) P.J.H.Hurter
* Vachellia siamensis (Craib) Maslin, Seigler & Ebinger
* Vachellia sieberiana (DC.) Kyal. & Boatwr.
* Vachellia sphaerocephala (Cham. & Schltdl.) Seigler & Ebinger
* Vachellia × standleyi (Saff.) Seigler & Ebinger
* Vachellia stuhlmannii (Taub.) Kyal. & Boatwr.
* Vachellia suberosa (A.Cunn. ex Benth.) Kodela
* Vachellia sutherlandii (F.Muell.) Kodela
* Vachellia swazica (Burtt Davy) Kyal. & Boatwr.
* Vachellia tenuispina (I.Verd.) Kyal. & Boatwr.
* Vachellia tephrophylla (Thulin) Kyal. & Boatwr.
* Vachellia theronii (P.P.Sw.) Boatwr.
* Vachellia tomentosa (Rottler) Maslin, Seigler & Ebinger
* Vachellia torrei (Brenan) Kyal. & Boatwr.
* Vachellia tortilis (Forssk.) Galasso & Banfi
* Vachellia tortuosa (L.) Seigler & Ebinger
* Vachellia valida (Tindale & Kodela) Kodela
* Vachellia vernicosa (Britton & Rose) Seigler & Ebinger
* Vachellia viguieri (Villiers & Du Puy) Boatwr.
* Vachellia walwalensis (Gilliland) Kyal. & Boatwr.
* Vachellia xanthophloea (Benth.) Banfi & Galasso
* Vachellia yemenensis (Boulos) Ragup., Seigler, Ebinger & Maslin
* Vachellia zanzibarica (S.Moore) Kyal. & Boatwr.
* Vachellia zapatensis (Urb. & Ekman) Seigler & Ebinger
* Vachellia × ziggyi Seigler & Ebinger