Oxalidales is an order of flowering plants, included within the rosid subgroup of eudicots. Compound leaves are common in Oxalidales and the majority of the species in this order have five or six sepals and petals.Stephens, P.F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008. http://www.mobot.org/MOBOT/Research/APweb/

The anthophytes are a grouping of plant taxa bearing flower-like reproductive structures. They were formerly thought to be a clade comprising plants bearing flower-like structures. The group contained the angiosperms - the extant flowering plants, such as roses and grasses - as well as the Gnetales and the extinct Bennettitales.

23,420 species of vascular plant have been recorded in South Africa, making it the sixth most species-rich country in the world and the most species-rich country on the African continent. Of these, 153 species are considered to be threatened. Nine biomes have been described in South Africa: Fynbos, Succulent Karoo, desert, Nama Karoo, grassland, savanna, Albany thickets, the Indian Ocean coastal belt, and forests.

The 2018 South African National Biodiversity Institute's National Biodiversity Assessment plant checklist lists 35,130 taxa in the phyla Anthocerotophyta (hornworts (6)), Anthophyta (flowering plants (33534)), Bryophyta (mosses (685)), Cycadophyta (cycads (42)), Lycopodiophyta (Lycophytes(45)), Marchantiophyta (liverworts (376)), Pinophyta (conifers (33)), and Pteridophyta (cryptogams (408)).

Four families are represented in the literature. Listed taxa include species, subspecies, varieties, and forms as recorded, some of which have subsequently been allocated to other taxa as synonyms, in which cases the accepted taxon is appended to the listing. Multiple entries under alternative names reflect taxonomic revision over time.

Connaraceae Family: Connaraceae,

Cnestis Genus Cnestis: Cnestis polyphylla Lam. indigenous

Cunoniaceae Family: Cunoniaceae,

Cunonia Genus Cunonia: Cunonia capensis L. endemic

Platylophus Genus Platylophus: Platylophus trifoliatus (L.f.) D.Don, endemic

Elaeocarpaceae Family: Elaeocarpaceae

Elaeocarpus Genus Elaeocarpus Elaeocarpus reticulatus Sm. not indigenous, cultivated, naturalised

Oxalidaceae Family: Oxalidaceae,

Oxalis Genus Oxalis: Oxalis adenodes Sond. indigenous Oxalis adspersa Eckl. & Zeyh. endemic Oxalis albiuscula T.M.Salter, endemic Oxalis algoensis Eckl. & Zeyh. endemic Oxalis ambigua Jacq. endemic Oxalis amblyodonta T.M.Salter, endemic Oxalis amblyosepala Schltr. endemic Oxalis annae F.Bolus, endemic Oxalis anomala T.M.Salter, endemic Oxalis argillacea F.Bolus, endemic Oxalis argyrophylla T.M.Salter, endemic Oxalis aridicola T.M.Salter, endemic Oxalis attaquana T.M.Salter, indigenous Oxalis aurea Schltr. endemic Oxalis ausensis R.Knuth, indigenous Oxalis beneprotecta Dinter ex R.Knuth, indigenous Oxalis bifida Thunb. endemic Oxalis bifurca Lodd. indigenous Oxalis bifurca Lodd. var. angustiloba Sond. endemic Oxalis bifurca Lodd. var. bifurca, endemic Oxalis blastorrhiza T.M.Salter, endemic Oxalis bowiei Lindl. endemic Oxalis burkei Sond. endemic Oxalis burtoniae T.M.Salter, endemic Oxalis callimarginata Weintroub, accepted as Oxalis goniorrhiza Eckl. & Zeyh. present Oxalis callosa R.Knuth, endemic Oxalis callosa R.Knuth var. callosa, endemic Oxalis callosa R.Knuth var. minor T.M.Salter, endemic Oxalis calvinensis R.Knuth, endemic Oxalis camelopardalis T.M.Salter, endemic Oxalis campicola T.M.Salter, endemic Oxalis campylorhiza T.M.Salter, endemic Oxalis capillacea E.Mey. ex Sond. endemic Oxalis caprina Thunb. endemic Oxalis cathara T.M.Salter, endemic Oxalis ciliaris Jacq. indigenous Oxalis ciliaris Jacq. var. ciliaris, endemic Oxalis ciliaris Jacq. var. pageae (L.Bolus) T.M.Salter, endemic Oxalis clavifolia Sond. endemic Oxalis commutata Sond. indigenous Oxalis commutata Sond. var. commutata, endemic Oxalis commutata Sond. var. concolor T.M.Salter, endemic Oxalis commutata Sond. var. montana T.M.Salter, endemic Oxalis comosa E.Mey. ex Sond. endemic Oxalis compressa L.f. indigenous Oxalis compressa L.f. var. compressa, endemic Oxalis compressa L.f. var. purpurascens T.M.Salter, endemic Oxalis comptonii T.M.Salter, endemic Oxalis confertifolia (Kuntze) R.Knuth, accepted as Oxalis confertifolia (Kuntze) R.Knuth var. confertifolia, endemic Oxalis convexula Jacq. endemic Oxalis copiosa F.Bolus, indigenous Oxalis corniculata L. not indigenous, naturalised, invasive Oxalis creaseyi T.M.Salter, endemic Oxalis crispula Sond. endemic Oxalis crocea T.M.Salter, indigenous Oxalis cuneata Jacq. endemic Oxalis davyana R.Knuth, endemic Oxalis densa N.E.Br. endemic Oxalis dentata Jacq. accepted as Oxalis livida Jacq. var. altior T.M.Salter, present Oxalis depressa Eckl. & Zeyh. indigenous Oxalis deserticola T.M.Salter, endemic Oxalis dichotoma T.M.Salter, endemic Oxalis dilatata L.Bolus, endemic Oxalis dines Ornduff, endemic Oxalis disticha Jacq. endemic Oxalis dregei Sond. endemic Oxalis droseroides E.Mey. ex Sond. endemic Oxalis duriuscula Schltr. endemic Oxalis ebracteata Savign. endemic Oxalis eckloniana C.Presl, indigenous Oxalis eckloniana C.Presl var. eckloniana, endemic Oxalis eckloniana C.Presl var. hopefieldiana R.Knuth, endemic Oxalis eckloniana C.Presl var. montigena (Schltr.) R.Knuth, endemic Oxalis eckloniana C.Presl var. robusta T.M.Salter, endemic Oxalis eckloniana C.Presl var. sonderi T.M.Salter, endemic Oxalis engleriana Schltr. endemic Oxalis ericifolia Oberl. & Dreyer, endemic Oxalis exserta T.M.Salter, indigenous Oxalis extensa T.M.Salter, indigenous Oxalis fabifolia Jacq. accepted as Oxalis flava L. var. fabifolia (Jacq.) Dreyer & Oberl. endemic Oxalis falcatula T.M.Salter, endemic Oxalis fergusonae T.M.Salter, endemic Oxalis fibrosa F.Bolus, endemic Oxalis flava L. endemic Oxalis flava L. var. fabifolia (Jacq.) Dreyer & Oberl. endemic Oxalis flava L. var. flava, endemic Oxalis flava L. var. unifoliolata Dreyer & Oberl. endemic Oxalis flaviuscula T.M.Salter, endemic Oxalis flaviuscula T.M.Salter var. flaviuscula, endemic Oxalis flaviuscula T.M.Salter var. longifolia T.M.Salter, endemic Oxalis fourcadei T.M.Salter, endemic Oxalis foveolata Turcz. endemic Oxalis fragilis T.M.Salter, endemic Oxalis fragilis T.M.Salter var. fragilis, endemic Oxalis fragilis T.M.Salter var. pellucida T.M.Salter, endemic Oxalis furcillata T.M.Salter, indigenous Oxalis furcillata T.M.Salter var. caulescens T.M.Salter, endemic Oxalis furcillata T.M.Salter var. furcillata, endemic Oxalis giftbergensis T.M.Salter, endemic Oxalis glabra Thunb. endemic Oxalis goniorrhiza Eckl. & Zeyh. endemic Oxalis gracilipes Schltr. endemic Oxalis gracilis Jacq. indigenous Oxalis gracilis Jacq. var. gracilis, endemic Oxalis gracilis Jacq. var. lilacea T.M.Salter, endemic Oxalis gracilis Jacq. var. purpurea T.M.Salter, endemic Oxalis grammopetala Sond. endemic Oxalis grammophylla T.M.Salter, endemic Oxalis haedulipes T.M.Salter, indigenous Oxalis heidelbergensis T.M.Salter, endemic Oxalis helicoides T.M.Salter, indigenous Oxalis helicoides T.M.Salter var. alba T.M.Salter, endemic Oxalis helicoides T.M.Salter var. helicoides, endemic Oxalis heterophylla DC. endemic Oxalis hirsuta Sond. endemic Oxalis hirta L. indigenous Oxalis hirta L. var. canescens R.Knuth, endemic Oxalis hirta L. var. hirta, endemic Oxalis hirta L. var. intermedia T.M.Salter, endemic Oxalis hirta L. var. polioeides T.M.Salter, endemic Oxalis hirta L. var. secunda (Jacq.) T.M.Salter, endemic Oxalis hirta L. var. tenuicaulis R.Knuth, endemic Oxalis hirta L. var. tubiflora (Jacq.) T.M.Salter, endemic Oxalis hygrophila Dreyer, endemic Oxalis imbricata Eckl. & Zeyh. indigenous Oxalis imbricata Eckl. & Zeyh. var. cuneifolia T.M.Salter, endemic Oxalis imbricata Eckl. & Zeyh. var. imbricata, endemic Oxalis imbricata Eckl. & Zeyh. var. violacea R.Knuth, endemic Oxalis inaequalis Weintroub, endemic Oxalis incarnata L. endemic Oxalis inconspicua T.M.Salter, endemic Oxalis involuta T.M.Salter, endemic Oxalis ioeides T.M.Salter & Exell, endemic Oxalis kamiesbergensis T.M.Salter, endemic Oxalis knuthiana T.M.Salter, indigenous Oxalis lanata L.f., indigenous Oxalis lanata L.f. var. lanata, endemic Oxalis lanata L.f. var. rosea T.M.Salter, endemic Oxalis lasiorrhiza T.M.Salter, endemic Oxalis lateriflora Jacq. accepted as Oxalis livida Jacq. var. altior T.M.Salter, present Oxalis latifolia Kunth, not indigenous; nat; inv Oxalis lawsonii F.Bolus, indigenous Oxalis laxicaulis R.Knuth, indigenous Oxalis leipoldtii Schltr. endemic Oxalis leptocalyx Sond. endemic Oxalis leptogramma T.M.Salter, endemic Oxalis levis T.M.Salter, endemic Oxalis lichenoides T.M.Salter, endemic Oxalis lindaviana Schltr. endemic Oxalis linearis Jacq. endemic Oxalis lineolata T.M.Salter, endemic Oxalis livida Jacq. indigenous Oxalis livida Jacq. var. altior T.M.Salter, endemic Oxalis livida Jacq. var. livida, endemic Oxalis louisae T.M.Salter, endemic Oxalis luteola Jacq. endemic Oxalis macra Schltr. endemic Oxalis marlothii Schltr. ex R.Knuth, endemic Oxalis massoniana T.M.Salter, indigenous Oxalis massoniana T.M.Salter var. flavescens T.M.Salter, endemic Oxalis massoniana T.M.Salter var. massoniana, endemic Oxalis meisneri Sond. endemic Oxalis melanograpta T.M.Salter, endemic Oxalis melanosticta Sond. indigenous Oxalis melanosticta Sond. var. latifolia T.M.Salter, endemic Oxalis melanosticta Sond. var. melanosticta, endemic Oxalis microdonta T.M.Salter, endemic Oxalis minuta Thunb. endemic Oxalis monophylla L. indigenous Oxalis monophylla L. var. minor T.M.Salter, endemic Oxalis monophylla L. var. monophylla, endemic Oxalis monophylla L. var. rotundifolia T.M.Salter, endemic Oxalis monophylla L. var. stenophylla (Meisn.) Sond. endemic Oxalis multicaulis Eckl. & Zeyh. endemic Oxalis multicaulis Eckl. & Zeyh. var. multicaulis, endemic Oxalis multicaulis Eckl. & Zeyh. var. stolonifera T.M.Salter, endemic Oxalis namaquana Sond. indigenous Oxalis natans Thunb. , endemic Oxalis nidulans Eckl. & Zeyh. , indigenous Oxalis nidulans Eckl. & Zeyh. var. denticulata (Wolley-Dod) T.M.Salter, endemic Oxalis nidulans Eckl. & Zeyh. var. nidulans, endemic Oxalis nivea Roets, Dreyer & Oberl. endemic Oxalis nortieri T.M.Salter, endemic Oxalis obliquifolia Steud. ex A.Rich. indigenous Oxalis obtusa Jacq. indigenous Oxalis oculifera E.G.H.Oliv. endemic Oxalis odorata J.C.Manning & Goldblatt, endemic Oxalis oligophylla T.M.Salter, endemic Oxalis orbicularis T.M.Salter, endemic Oxalis oreithala T.M.Salter, endemic Oxalis oreophila T.M.Salter, endemic Oxalis orthopoda T.M.Salter, endemic Oxalis pallens Eckl. & Zeyh. endemic Oxalis palmifrons T.M.Salter, endemic Oxalis pardalis Sond. endemic Oxalis pendulifolia T.M.Salter, endemic Oxalis perineson T.M.Salter & Exell, endemic Oxalis pes-caprae L. indigenous Oxalis pes-caprae L. var. pes-caprae, indigenous Oxalis pes-caprae L. var. sericea (L.f.) T.M.Salter, indigenous Oxalis petiolulata F.Bolus, endemic Oxalis petraea T.M.Salter, endemic Oxalis petricola Dreyer, Roets & Oberl. endemic Oxalis phloxidiflora Schltr. endemic Oxalis pillansiana T.M.Salter & Exell, endemic Oxalis pocockiae L.Bolus, endemic Oxalis polyphylla Jacq. indigenous Oxalis polyphylla Jacq. var. alba T.M.Salter, endemic Oxalis polyphylla Jacq. var. heptaphylla T.M.Salter, endemic Oxalis polyphylla Jacq. var. minor T.M.Salter, endemic Oxalis polyphylla Jacq. var. pentaphylla (Sims) T.M.Salter, endemic Oxalis polyphylla Jacq. var. polyphylla, endemic Oxalis polyphylla Jacq. var. pubescens Sond. endemic Oxalis porphyriosiphon T.M.Salter, endemic Oxalis primuloides R.Knuth, endemic Oxalis psammophila G.Will. endemic Oxalis pseudohirta T.M.Salter, endemic Oxalis psilopoda Turcz. endemic Oxalis pulchella Jacq. indigenous