| Polygonaceae | |
Rumex × abortivus
| Ruhmer | Eichl. Jahrb. Berl. 1: 253 | 1881 |
| Polygonaceae | ! |
Rumex abyssinicus
| Jacq. | Hort. Vind. 3: 48, t. 93 | 1776 |
| Polygonaceae | |
Rumex accessorius
| Rech. f. | Candollea 12: 144 | 1949 |
| Polygonaceae | |
Rumex acetosa
| L. | Sp. Pl. 1: 337–338 | 1753 |
| Polygonaceae | |
Rumex acetosella
| L. | Sp. Pl. 1: 338 | 1753 |
| Polygonaceae | |
Rumex acetoselloides
| Balansa | Bull. Soc. Bot. France 1: 282 | 1854 |
| Polygonaceae | ** |
Rumex acutus
| Sm. | Fl. Brit. 1: 391–392 | 1804 [1800] |
| Polygonaceae | ! |
Rumex acutus
| L. | Sp. Pl. 1: 335 | 1753 |
| Polygonaceae | |
Rumex aetnensis
| C. Presl | | |
| Polygonaceae | |
Rumex aetnensis
| J. Presl & C. Presl | Delic. Prag. 68 | 1822 |
| Polygonaceae | |
Rumex affinis
| Kunth | | |
| Polygonaceae | * |
Rumex agrestis
| Schur | Enum. Pl. Transsilv. 580 | 1866 |
| Polygonaceae | |
Rumex albescens
| Hillebr. | | |
| Polygonaceae | |
Rumex alcockii
| Rech. f. | Nuytsia 5(1): 109 | 1984 |
| Polygonaceae | |
Rumex × alexidis
| B. Boivin | Naturaliste Canad. 93(5): 645 | 1966 |
| Polygonaceae | |
Rumex alluvius
| F.C. Gates & McGregor | Trans. Kansas Acad. Sci. 53: 186–189, f. s.n. [p. 187] | 1950 |
| Polygonaceae | |
Rumex alpestris
| Jacq. | Enum. Stirp. Vindob. 62 | 1762 |
| Polygonaceae | !! |
Rumex alpinus
| L. | Sp. Pl. 1: 334 | 1753 |
| Polygonaceae | |
Rumex altissimus
| Alph. Wood | Class-book Bot. (ed. 2) 477 | 1847 |
| Polygonaceae | |
Rumex alveolatus
| Los.-Losinsk. | Fl. Turkmanen 2: 44 | 1937 |
| Polygonaceae | |
Rumex × ambigens
| Hausskn. | Mitth. Bot. Ver. Jena 3(4): 61 | 1885 |
| Polygonaceae | |
Rumex ambiguus
| Gren. | Fl. France 3: 44 | 1855 |
| Polygonaceae | |
Rumex amplexicaulis
| Lapeyr. | Hist. Pl. Pyrénées 200 | 1813 |
| Polygonaceae | |
Rumex amurensis
| F. Schmidt ex Maxim. | Prim. Fl. Amur. 228 | 1859 |
| Polygonaceae | |
Rumex andinus
| Rech. f. | Ark. Bot. 26(3): 29 | 1935 |
| Polygonaceae | |
Rumex angiocarpus
| Murb. | Acta Univ. Lund. 27(5): 46-50 | 1892 |
| Polygonaceae | |
Rumex angreni
| Sumner | | |
| Polygonaceae | |
Rumex angulatus
| Rech. f. | Candollea 12: 51–52 | 1949 |
| Polygonaceae | |
Rumex angustifolius
| Campd. | Monogr. Rumex 73 | 1819 |
| Polygonaceae | |
Rumex angustissimus
| Ledeb. | Mém. Acad. Imp. Sci. Saint Pétersbourg, Sér. 7 5: 536 | 1814 |
| Polygonaceae | |
Rumex × anisotyloies
| Sumner | | |
| Polygonaceae | |
Rumex aquaticiformis
| Rech. f. | Ark. Bot. 26A(3): 10 | 1934 |
| Polygonaceae | |
Rumex aquaticus
| L. | Sp. Pl. 1: 336 | 1753 |
| Polygonaceae | |
Rumex aquitanicus
| Rech. f. | Repert. Spec. Nov. Regni Veg. 26: 177 | 1929 |
| Polygonaceae | |
Rumex arcticus
| Trautv. | Reise Sibir. 1(2,1): 29 | 1847 |
| Polygonaceae | |
Rumex arcuatoramosus
| Rech. f. | Fl. Pakistan 205: 146–147 | 2001 |
| Polygonaceae | |
Rumex argentinus
| Rech. f. | Ark. Bot. 26A(3): 24 | 1933 |
| Polygonaceae | |
Rumex arifolius
| All. | Auct. Syn. 42 | 1773 |
| Polygonaceae | |
Rumex arizonicus
| Britton | Trans. New York Acad. Sci. 8(3–4): 73 | 1889 |
| Polygonaceae | |
Rumex armenus
| C. Koch | | |
| Polygonaceae | |
Rumex × arpadianus
| Bihari. | | |
| Polygonaceae | |
Rumex arvensis
| (Lam.) Dulac | Fl. Hautes-Pyrénées 165 | |
| Polygonaceae | |
Rumex aschabadensis
| Losinsk. | | |
| Polygonaceae | |
Rumex asplundii
| Rech. f. | | |
| Polygonaceae | |
Rumex atlanticus
| Coss. | | |
| Polygonaceae | |
Rumex aureostigmaticus
| Kom. | Repert. Spec. Nov. Regni Veg. 13(355/358): 166 | 1914 |
| Polygonaceae | |
Rumex aureus
| Mill. | Gard. Dict. (ed. 8) Rumex no. 7 | 1768 |
| Polygonaceae | |
Rumex auriculatus
| (Wallr.) Murb. | Bot. Not. 1899: 39 | 1899 |
| Polygonaceae | |
Rumex australis
| (Willk.) A. Fern. | Revista Biol. (Lisbon) 12: 356 | 1984 |
| Polygonaceae | |
Rumex autranianus
| Freyn & Sint. | | |
| Polygonaceae | |
Rumex azoricus
| Rech. f. | Candollea 11: 229 | 1948 |
| Polygonaceae | |
Rumex bakeri
| Greene | Pl. Baker. 3: 15 | 1901 |
| Polygonaceae | |
Rumex balcanicus
| Rech. f. | Magyar Bot. Lapok 33: 5 | 1934 |
| Polygonaceae | ** |
Rumex × baqubensis
| Rech. | | |
| Polygonaceae | |
Rumex bequaertii
| De Wild. | Pl. Bequaert. 5: 2 | 1929 |
| Polygonaceae | |
Rumex beringensis
| Jurtzev & V.V. Petrovsky | Bot. Zhurn. (Moscow & Leningrad) 58(12): 1745 | 1973 |
| Polygonaceae | * |
Rumex berlandieri
| Meisn. | Prodr. 14(1): 45 | 1856 |
| Polygonaceae | |
Rumex biformis
| Lange | Index Seminum (Copenhagen) 1857: 26 | 1857 |
| Polygonaceae | |
Rumex bipinnatus
| L. f. | Suppl. Pl. 211 | 1781 [1782] |
| Polygonaceae | |
Rumex bonariensis
| Campd. | | |
| Polygonaceae | |
Rumex brasiliensis
| Link | Enum. Pl. Hort. Berol. Alt. 1: 349 | 1821 |
| Polygonaceae | |
Rumex brevipes
| Meisn. | Prodr. 14(1): 55 | 1856 |
| Polygonaceae | |
Rumex britannica
| L. | Sp. Pl. 1: 334 | 1753 |
| Polygonaceae | * |
Rumex brownianus
| Schult. f. | Syst. Veg. (ed. 15 bis) 7(2): 1395 | 1830 |
| Polygonaceae | |
Rumex brownii
| Campd. | Monogr. Rumex 64, 81 | 1819 |
| Polygonaceae | |
Rumex × brueggeri
| Guerke. | | |
| Polygonaceae | |
Rumex bucephalophorus
| L. | Sp. Pl. 1: 336 | 1753 |
| Polygonaceae | |
Rumex cacaliifolius
| H. Lév. | Repert. Spec. Nov. Regni Veg. 13(368–369): 338 | 1914 |
| Polygonaceae | |
Rumex californicus
| Rech. f. | Repert. Spec. Nov. Regni Veg. 40(20–25): 297–298 | 1936 |
| Polygonaceae | |
Rumex × callianthemus
| Danser. | | |
| Polygonaceae | |
Rumex callosissimus
| C.F.W. Meissn. | Prodr. 14: 57 | 1856 |
| Polygonaceae | |
Rumex callosus
| (F. Schmidt ex Maxim.) Rech. f. | | |
| Polygonaceae | |
Rumex camptodon
| Rech. f. | Beih. Bot. Centralbl., Abt. 2 49: 76 | 1932 |
| Polygonaceae | |
Rumex cantabricus
| Rech. f. | Oesterr. Bot. Z. 107: 439 | 1960 |
| Polygonaceae | |
Rumex cardiocarpus
| Pamp. | Nuovo Giorn. Bot. Ital., n.s. 17(2): 260–261, f. 4 | 1910 |
| Polygonaceae | |
Rumex carpathicus
| (Zapal.) Zapal. | Consp. Fl. Galic. Crit. 2: 118 | 1908 |
| Polygonaceae | |
Rumex carpaticus
| Zapal. | Consp. Fl. Galic. Crit. 2: 118 | 1908 |
| Polygonaceae | |
Rumex cassius
| Boiss. | Fl. Orient. 4: 1013 | 1879 |
| Polygonaceae | |
Rumex caucasicus
| Rech. f. | | |
| Polygonaceae | |
Rumex chalepensis
| | Gard. Dict. (ed. 8) | 1768 |
| Polygonaceae | |
Rumex chalepensis
| Mill. | Gard. Dict. (ed. 8) no. 11 | 1768 |
| Polygonaceae | |
Rumex chinensis
| Campd. | Monogr. Rumex 63, 75 | 1819 |
| Polygonaceae | |
Rumex chrysocarpus
| Moris | Mem. Reale Accad. Sci. Torino 38: 46–48 | 1835 |
| Polygonaceae | |
Rumex condylodes
| M. Bieb. | Fl. Taur.-Caucas. 1: 288 | 1808 |
| Polygonaceae | |
Rumex confertoides
| Bihari | Magyar Bot. Lapok 27: 73 | 1929 |
| Polygonaceae | |
Rumex confertus
| Willd. | Enum. Pl. 1: 397 | 1809 |
| Polygonaceae | |
Rumex confinis
| Hausskn. | | 1885 |
| Polygonaceae | * |
Rumex confinis
| Greene | Pittonia 4(25A): 306 | 1901 |
| Polygonaceae | |
Rumex × confusus
| Simonk. | Természetrajzi Füz. 1: 238–239 | 1877 |
| Polygonaceae | |
Rumex conglomeratus
| Murray | Prodr. Stirp. Gott. 52 | 1770 |
| Polygonaceae | |
Rumex × conspersus
| Hartm. | Handb. Skand. Fl. | |
| Polygonaceae | |
Rumex cordatus
| Poir. | | |
| Polygonaceae | |
Rumex costaricensis
| Rech. f. | Repert. Spec. Nov. Regni Veg. 40(1040/1045): 300–301 | 1936 |
| Polygonaceae | |
Rumex crassus
| Rech. f. | Repert. Spec. Nov. Regni Veg. 40(20–25): 295–296 | 1936 |
| Polygonaceae | * |
Rumex creticus
| Boiss. | Diagn. Pl. Orient., ser. 1, 12: 102 | 1853 |
| Polygonaceae | |
Rumex creticus
| Campd. | Monogr. Rumex 149 | 1819 |
| Polygonaceae | |
Rumex crispatulus
| Michx. | Fl. Bor.-Amer. 1: 217 | 1803 |
| Polygonaceae | |
Rumex crispellus
| Rech. f. | Fl. Pakistan 205: 151–153, pl. 25A–C | 2001 |
| Polygonaceae | |
Rumex crispissimus
| Kuntze | Revis. Gen. Pl. 3(3): 269 | 1898 |
| Polygonaceae | * |
Rumex crispus
| Lour. | Fl. Cochinch. 1: 216 | 1790 |