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512.0000 Family Acanthaceae Juss.; Gen. Pl. [Jussieu] 102 (1789) (´Acanthi´), nom. cons.
ca. 192 genera, ca. 5500 spp. Phylogeny: Manzitto-Tripp et al. 2022
Species listed in database: 5597
= Avicenniaceae Miq.; Pl. Preiss. [J.G.C.Lehmann] 1: 353 (1845), nom. cons.
= Justiciaceae Raf.; Fl. Tellur. 4: 60 (1838)
= Mendonciaceae Bremek.; Proc. Kon. Ned. Akad. Wetensch. C 56: 540 (1954)
= Meyeniaceae Sreem.; Phytologia 37: 412 (1977)
= Nelsoniaceae (Nees) Sreem.; Phytologia 37: 412 (1977)
= Thunbergiaceae Lilja; Skånes Fl., ed. 2: 979 (1870)
512.4117 Genus Acanthopsis Harv.; London J. Bot. 1: 28 (1842)
Distribution: South Africa (N-Cape Prov.) and S-Namibia
Species listed in database: 20
species :
Acanthopsis adamanticola H.M.Steyn; Phytotaxa 219(1): 12 (2015)
Distribution: Namibia
27 NAM
species :
Acanthopsis carduifolia (L.f.) Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 200 (1890)
Distribution: South Africa (N-Cape Prov.)
27 SAF
Synonyms: hidden
= Acanthodium carduifolium (L.f.) Nees; Prodr. [A.P. de Candolle] 11: 278 (1847)
= Acanthus carduifolius L.f.; Suppl. Pl. [Linnaeus f.] 294 (1782)
= Blepharacanthus carduifolius (L.f.) Nees ex Steud.; Nomencl. Bot. [Steudel], ed. 2, 1: 209 (1841)
= Blepharis carduifolia (L.f.) T.Anderson; J. Proc. Linn. Soc., Bot. 7: 35 (1863)
species :
Acanthopsis disperma Harv.; London J. Bot. 1: 28 (1842)
Distribution: Namibia; South Africa (N-Cape Prov., W-Cape Prov.)
27 NAM SAF
Synonyms: hidden
= Acanthodium dispermum E.Mey.; Cat. Pl. Exsicc. Afr. Austral. [Drège] 2 (1837), nomen
= Acanthopsis carduifolia var. longearistata Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 201 (1890)
= Acanthopsis disperma var. villosa Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 201 (1890)
= Blepharis acaulis Lindau; Bot. Jahrb. Syst. 49: 403 (1913)
species :
Acanthopsis dispermoides H.M.Steyn; Phytotaxa 219(1): 23 (2015)
Distribution: South Africa (W-Cape Prov.)
27 SAF
species :
Acanthopsis dregeana H.M.Steyn; Phytotaxa 244(2): 155 (2016)
subspecies :
subsp. dregeana
Distribution: South Africa (N-Cape Prov.)
27 SAF
subspecies :
subsp. longispina H.M.Steyn; Phytotaxa 295(3): 210 (2017)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis erosa H.M.Steyn; Phytotaxa 244(2): 155 (2016)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis glabra (Nees) H.M.Steyn; Phytotaxa 324(2): 104 (2017)
Distribution: South Africa
27 SAF
Synonyms: hidden
= Acanthodium glabrum Nees; Prodr. [A.P. de Candolle] 11: 278 (1847)
= Acanthopsis carduifolia var. glabra (Nees) Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 200 (1890)
= Acanthus glaber E.Mey. ex Nees; Prodr. [A.P. de Candolle] 11: 278 (1847)
= Blepharis carduifolia var. glabra (Nees) T.Anderson; J. Proc. Linn. Soc., Bot. 7: 35 (1864)
species :
Acanthopsis glandulopalmata H.M.Steyn; Phytotaxa 324(2): 113 (2017)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis glauca (E.Mey.) Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 201 (1890)
Distribution: South Africa (N-Cape Prov.)
27 SAF
Synonyms: hidden
= Acanthodium glaucum Nees; Prodr. [A.P. de Candolle] 11: 277 (1847)
= Acanthus glaucus E.Mey.; Bot. Jahrb. Syst. 49: 403 (1913)
= Blepharis glauca (Nees) T.Anderson; J. Proc. Linn. Soc., Bot. 7: 36 (1863)
species :
Acanthopsis hoffmannseggiana (Nees) C.B.Clarke; Fl. Cap. [Harvey & auct. succ.] 5: 35 (1901)
Distribution: S-Namibia; South Africa (N-Cape Prov.)
27 NAM SAF
Synonyms: hidden
= Acanthodium hoffmannseggianum Nees; Prodr. [A.P. de Candolle] 11: 277 (1847)
species :
Acanthopsis horrida (Nees) Nees; Prodr. [A.P. de Candolle] 11: 278 (1847)
Distribution: South Africa (N-Cape Prov.)
27 SAF
Synonyms: hidden
= Acanthodium plumulosum E.Mey. ex Nees; Prodr. [A.P. de Candolle] 11: 278 (1847)
= Acanthopsis trispina C.B.Clarke; Fl. Cap. [Harvey & auct. succ.] 5(1): 35 (1912)
= Dilivaria horrida Nees; Linnaea 15: 263 (1841)
species :
Acanthopsis insueta H.M.Steyn; Phytotaxa 324(2): 115 (2017)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis ludoviciana H.M.Steyn; Phytotaxa 219(1): 10 (2015)
Distribution: Origin unknown; France [c]
12 fra
species :
Acanthopsis nitida H.M.Steyn; Phytotaxa 324(2): 111 (2017)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis pagodiformis H.M.Steyn; Fl. Pl. Africa 66: 145 (2019)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis scullyi (S.Moore) Oberm.; Ann. Transvaal Mus. 19: 138 (1937)
Distribution: South Africa (N-Cape Prov.)
27 SAF
Synonyms: hidden
= Blepharis scullyi S.Moore; J. Bot. 39: 301 (1901)
species :
Acanthopsis spathularis (E.Mey.) Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 201 (1890)
Distribution: South Africa (N-Cape Prov.)
27 SAF
Synonyms: hidden
= Acanthodium spathulare Nees; Prodr. [A.P. de Candolle] 11: 277 (1847)
= Acanthus spathularis E.Mey. ex Nees; Prodr. [A.P. de Candolle] 11: 277 (1847), nom. inval.
= Blepharis spathularis (Nees) T.Anderson; J. Proc. Linn. Soc., Bot. 7: 35 (1863)
species :
Acanthopsis tetragona H.M.Steyn; Phytotaxa 295(3): 212 (2017)
subspecies :
subsp. tetragona
Distribution: South Africa (N-Cape Prov.)
27 SAF
subspecies :
subsp. pedunculata H.M.Steyn; Phytotaxa 295(3): 214 (2017)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis tuba H.M.Steyn; Phytotaxa 219(1): 8 (2015)
Distribution: South Africa (N-Cape Prov.)
27 SAF
species :
Acanthopsis villosa H.M.Steyn; Phytotaxa 219(1): 14 (2015)
Distribution: South Africa (N-Cape Prov.)
27 SAF
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A complete, synonymic checklist of the Higher Plants of the World


Version 26.08 (August 2nd, 2026)

Covering 360,349 accepted species,
8,927 hybrids, 47,544 accepted infraspecific taxa and 1,011,667 synonyms,
in total 1,428,487* names

[*about 20,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]


With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life