| Portulacaceae | |
Portulaca africana
| (Danin & H.G. Baker) Danin | Lagascalia 26: 76 | 2006 |
| Portulacaceae | |
Portulaca almeviae
| Ocampo | Phytotaxa 413(4): 290–292, 294, f. 1–3 | 2019 |
| Portulacaceae | |
Portulaca amboensis
| J.F. Macbr. | Candollea 5: 350 | 1934 |
| Portulacaceae | |
Portulaca amilis
| Speg. | Anales Soc. Ci. Argent. 92: 104, pl. 6 | 1921 |
| Portulacaceae | |
Portulaca anacampseros
| L. | Sp. Pl. 1: 445–446 | 1753 |
| Portulacaceae | |
Portulaca andicola
| Poelln. | Revista Sudamer. Bot. 7(6–8): 269 | 1943 |
| Portulacaceae | |
Portulaca andina
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(22): 4–5, t. 1, f. 6, t. 5 | 1952 |
| Portulacaceae | |
Portulaca arachnoides
| Haw. | Misc. Nat. 142 | 1803 |
| Portulacaceae | |
Portulaca arenicola
| Poelln. | Repert. Spec. Nov. Regni Veg. 49: 214 | 1940 |
| Portulacaceae | |
Portulaca arequipaensis
| Poelln. | Repert. Spec. Nov. Regni Veg. 50: 104 | 1941 |
| Portulacaceae | |
Portulaca argentinensis
| Speg. | Physis (Buenos Aires) 3: 171 | 1917 |
| Portulacaceae | |
Portulaca armitii
| F. Muell. | Fragm. | |
| Portulacaceae | |
Portulaca aurantiaca
| Proctor | J. Arnold Arbor. 63(3): 237 | 1982 |
| Portulacaceae | |
Portulaca bicolor
| F. Muell. | Fragm. 1: 171 | 1859 |
| Portulacaceae | |
Portulaca biloba
| Urb. | Repert. Spec. Nov. Regni Veg. 22(22–25): 335 | 1926 |
| Portulacaceae | ** |
Portulaca boliviensis
| Poelln. | Revista Sudamer. Bot. 7(6–8): 272 | 1943 |
| Portulacaceae | ! |
Portulaca brevifolia
| Urb. | Symb. Antill. 5: 340 | 1907 |
| Portulacaceae | * |
Portulaca brevifolia
| Huber | | |
| Portulacaceae | |
Portulaca brevioperculata
| Poelln. | Bol. Soc. Brot., sér. 2 15: 32 | 1941 |
| Portulacaceae | |
Portulaca bulbifera
| M.G. Gilbert | Nordic J. Bot. 14: 309 | 1994 |
| Portulacaceae | |
Portulaca caffra
| Thunb. | Prodr. Pl. Cap. 85 | 1800 |
| Portulacaceae | |
Portulaca californica
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(22): 2–3, t. 1, f. 2, t. 3 | 1952 |
| Portulacaceae | |
Portulaca cardenasiana
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(27): 9–11, f., t. 5 | 1953 |
| Portulacaceae | ** |
Portulaca caryophylloides
| hort. ex Vilm. | Fl. Pleine Terre (ed. 2) 722 | 1866 |
| Portulacaceae | * |
Portulaca catharinae
| Poelln. | Repert. Spec. Nov. Regni Veg. 44: 213 | 1940 |
| Portulacaceae | |
Portulaca catingaensis
| Poelln. | Repert. Spec. Nov. Regni Veg. 50: 109 | 1941 |
| Portulacaceae | |
Portulaca caulerpoides
| Britton & P. Wilson | Bull. Torrey Bot. Club 32: 515 | 1915 |
| Portulacaceae | |
Portulaca cayennensis
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(22): 3, t. 2, f. 3 | 1952 |
| Portulacaceae | |
Portulaca centraliafricana
| R.E. Fr. | | |
| Portulacaceae | |
Portulaca chacoana
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(27): 1–3, t. 1 | 1953 |
| Portulacaceae | |
Portulaca ciferrii
| Chiov. | Atti Ist. Bot. Univ. Pavia ser. 4, 7: 122, t. 3 | 1936 |
| Portulacaceae | |
Portulaca cinerea
| Poelln. | Repert. Spec. Nov. Regni Veg. 33: 158 | 1933 |
| Portulacaceae | |
Portulaca collina
| Dinter | | |
| Portulacaceae | |
Portulaca colombiana
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(22): 4, t. 1, f. 5, t. 4 | 1952 |
| Portulacaceae | |
Portulaca columbiana
| Poelln. | Revista Sudamer. Bot. 7(6–86–8): 271 | 1941 |
| Portulacaceae | |
Portulaca commutata
| M.G. Gilbert | Nordic J. Bot. 14: 308 | 1994 |
| Portulacaceae | |
Portulaca confertifolia
| Hauman | Anales Mus. Nac. Buenos Aires 32: 438 | 1925 |
| Portulacaceae | |
Portulaca conicooperculata
| Poelln. | Repert. Spec. Nov. Regni Veg. 33: 158 | 1933 |
| Portulacaceae | |
Portulaca conoidea
| S.M. Phillips | Kew Bull. 55: 693, fig. 3 | 2000 |
| Portulacaceae | |
Portulaca consanguinea
| Schltdl. | Linnaea 24: 693 | 1851 |
| Portulacaceae | |
Portulaca conzattii
| P. Wilson | Torreya 28(2): 28–29 | 1928 |
| Portulacaceae | |
Portulaca coralloides
| S.M. Phillips | Kew Bull. 55: 695 | 2000 |
| Portulacaceae | |
Portulaca coronata
| Small | Bull. Torrey Bot. Club 23(4): 126–127 | 1896 |
| Portulacaceae | |
Portulaca costata
| Poelln. | Bol. Soc. Brot., sér. 2 15: 33 | 1941 |
| Portulacaceae | |
Portulaca crassicaule
| Jacq. | Hort. Bot. Vindob. 3: 29, t. 52 | 1776 |
| Portulacaceae | |
Portulaca crassifolia
| Jacq. | Hort. Bot. Vindob. 3: t. 52 | 1776 |
| Portulacaceae | |
Portulaca crocodilorum
| Poelln. | | |
| Portulacaceae | |
Portulaca cryptopetala
| Speg. | Anales Soc. Ci. Argent. 82: 217, f. | 1916 |
| Portulacaceae | |
Portulaca cubensis
| Britton & P. Wilson | Mem. Torrey Bot. Club 16(2): 64 | 1920 |
| Portulacaceae | |
Portulaca cuneifolia
| Vahl | Symb. Bot. 1: 33 | 1790 |
| Portulacaceae | |
Portulaca cyanosperma
| | | |
| Portulacaceae | |
Portulaca decipiens
| Poelln. | Repert. Spec. Nov. Regni Veg. 33: 159 | 1933 |
| Portulacaceae | |
Portulaca decorticans
| M.G. Gilbert | Kew Bull. 47: 693, fig. 1 | 1992 |
| Portulacaceae | |
Portulaca decumbens
| (Forssk.) Vahl | Symb. Bot. 1: 33 | 1790 |
| Portulacaceae | |
Portulaca denudata
| Poelln. | Repert. Spec. Nov. Regni Veg. 33(873/882): 159–160 | 1933 |
| Portulacaceae | |
Portulaca depauperata
| Poelln. | Repert. Spec. Nov. Regni Veg. 33: 160 | 1933 |
| Portulacaceae | |
Portulaca diegoi
| Mattos | Loefgrenia 85: 1 | 1984 |
| Portulacaceae | |
Portulaca digyna
| F. Muell. | Fragm. 1: 170 | 1859 |
| Portulacaceae | * |
Portulaca diversifolia
| D. Legrand | Physis (Buenos Aires) 15: 401, f. 2 | 1939 |
| Portulacaceae | ! |
Portulaca diversifolia
| Poelln. | Repert. Spec. Nov. Regni Veg. 33: 160 | 1933 |
| Portulacaceae | |
Portulaca dodomaensis
| M.G. Gilbert | Kew Bull. 55: 800, fig. 1/f-h | 2000 |
| Portulacaceae | |
Portulaca echinosperma
| Hauman | Anales Mus. Nac. Buenos Aires 32: 441 | 1925 |
| Portulacaceae | |
Portulaca edulis
| Danin & Bagella | Willdenowia 42(1): 63-65, fig. 1 | 2012 |
| Portulacaceae | |
Portulaca ehrenbergii
| Poelln. | Repert. Spec. Nov. Regni Veg. 50(6–12): 93–94 | 1941 |
| Portulacaceae | |
Portulaca elatior
| Mart. ex Rohrb. | Fl. Bras. 14(2): 302, t. 69 | 1872 |
| Portulacaceae | |
Portulaca elongata
| Rusby | Mem. Torrey Bot. Club 6(1): 7 | 1896 |
| Portulacaceae | |
Portulaca erecta
| Urb. & Ekman | Ark. Bot. 32(11): 9 | 1931 |
| Portulacaceae | |
Portulaca eriophora
| Casar. | Nov. Stirp. Bras. 2: 23 | 1842 |
| Portulacaceae | |
Portulaca eruca
| Hauman | Anales Mus. Nac. Buenos Aires 32: 440 | 1925 |
| Portulacaceae | |
Portulaca expatriata
| Poelln. | Repert. Spec. Nov. Regni Veg. 50: 61 | 1941 |
| Portulacaceae | |
Portulaca fascicularis
| Peter | Repert. Spec. Nov. Regni Veg. Beih. 40(2, Anhang): 35, 267 | 1938 |
| Portulacaceae | |
Portulaca filamentosa
| Haw. | Misc. Nat. 142 | 1803 |
| Portulacaceae | |
Portulaca fischeri
| Pax | Bot. Jahrb. Syst. 17: 585 | 1893 |
| Portulacaceae | |
Portulaca fluvialis
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 1(1): 25, f. 7, 8b | 1942 |
| Portulacaceae | ! |
Portulaca foliosa
| Ker Gawl. | Bot. Reg. 1:t. 793 | 1825 |
| Portulacaceae | ** |
Portulaca foliosa
| DC. | Calq. Dess. Fl. Mex. 389 | 1874 |
| Portulacaceae | |
Portulaca formosana
| (Hayata) Hayata | Gen. Ind. Fl. Formos. 7 | 1917 |
| Portulacaceae | |
Portulaca fosbergii
| Poelln. | Occas. Pap. Bernice Pauahi Bishop Mus. 12(9): 3 | 1936 |
| Portulacaceae | |
Portulaca fragilis
| Poelln. | Repert. Spec. Nov. Regni Veg. 50: 61 | 1941 |
| Portulacaceae | |
Portulaca frieseana
| Poelln. | Repert. Spec. Nov. Regni Veg. 50: 117 | 1941 |
| Portulacaceae | * |
Portulaca fruticosa
| Thunb. | Prodr. Pl. Cap. 2: 85 | 1800 |
| Portulacaceae | |
Portulaca fruticosa
| L. | Syst. Nat. (ed. 10) 2: 1045 | 1759 |
| Portulacaceae | |
Portulaca fulgens
| Griseb. | Abh. Königl. Ges. Wiss. Göttingen 24: 30 | 1879 |
| Portulacaceae | |
Portulaca gagatosperma
| Millsp. | Publ. Field Columb. Mus., Bot. Ser. 2(7): 299 | 1909 |
| Portulacaceae | ! |
Portulaca gilliesii
| Hook. | Bot. Mag. 58: t. 3064 | 1831 |
| Portulacaceae | * |
Portulaca gilliesii
| Speg. | Physis (Buenos Aires) 3: 172 | 1917 |
| Portulacaceae | |
Portulaca giuliettiae
| T. Vieira & A.A. Coelho | Phytotaxa 270(2): 106 | 2016 |
| Portulacaceae | |
Portulaca glazioviana
| D. Legrand | Comun. Bot. Mus. Hist. Nat. Montevideo 2(27): 7–8, f., t. 4 | 1953 |
| Portulacaceae | |
Portulaca goiasensis
| T. Vieira & A.A. Coelho | Phytotaxa 270(2): 109 | 2016 |
| Portulacaceae | |
Portulaca gracilis
| Poelln. | Repert. Spec. Nov. Regni Veg. 50: 107 | 1941 |
| Portulacaceae | |
Portulaca grandiflora
| Hook. | Bot. Mag. 56: , t. 2885 | 1829 |
| Portulacaceae | |
Portulaca grandis
| Peter | Repert. Spec. Nov. Regni Veg. Beih. 40(2, Anhang): 34 | 1938 |
| Portulacaceae | |
Portulaca granulatostellulata
| (Poelln.) Ricceri & Arrigoni | Parlatorea 4: 93 | 2000 |
| Portulacaceae | |
Portulaca greenwayi
| M.G. Gilbert | Kew Bull. 55(4): 775 | 2000 |
| Portulacaceae | |
Portulaca guanajuatensis
| Ocampo | Acta Bot. Mex. 58: 1 | 2002 |
| Portulacaceae | |
Portulaca hainanensis
| Chun & F.C.How | Acta Phytotax. Sin. 7(1): 8–9, pl. 2, f. 2 | 1958 |
| Portulacaceae | |
Portulaca halimoides
| L. | Sp. Pl. (ed. 2) 1: 639 | 1762 |
| Portulacaceae | |
Portulaca hatschbachii
| D. Legrand | Anales Mus. Nac. Montevideo 7(3): 105, t. 22, f. 51 | 1962 |
| Portulacaceae | |
Portulaca haughtii
| J.F. Macbr. | Publ. Field Mus. Nat. Hist., Bot. Ser. 11(1): 21 | 1931 |
| Portulacaceae | |
Portulaca hawaiiensis
| | | |