| Polygonaceae | |
Polygonum abbreviatum
| Kom. | | |
| Polygonaceae | |
Polygonum aboriginum
| Fedde | Just's Bot. Jahresber. 32(1): 417 | 1905 |
| Polygonaceae | |
Polygonum abscissum
| Fedde | Just's Bot. Jahresber. 32(1): 417 | 1905 |
| Polygonaceae | |
Polygonum acadiense
| Fernald | Rhodora 16(191): 188–189 | 1914 |
| Polygonaceae | |
Polygonum acanthophyllum
| Lindau | Bot. Jahrb. 19(Beibl. 48): 12 | 1894 |
| Polygonaceae | |
Polygonum acaule
| Hook. f. | Hooker's Icon. Pl. 15(4): 71, pl. 1490 | 1885 |
| Polygonaceae | |
Polygonum acaule
| Boiss. | Fl. Orient. [Boiss.] 4: 1043 | 1879 |
| Polygonaceae | |
Polygonum acerosum
| Ledeb. ex Meisn. | Prodr. 14(1): 92 | 1856 |
| Polygonaceae | |
Polygonum acetosellum
| Klokov | | |
| Polygonaceae | |
Polygonum acetosiifolium
| Vent. | Descr. Pl. Nouv. 9: 88 | 1802 |
| Polygonaceae | |
Polygonum acetosum
| M. Bieb. | Fl. Taur.-Caucas. 1: 304 | 1808 |
| Polygonaceae | |
Polygonum achoreum
| S.F. Blake | Rhodora 19(226): 232–234 | 1917 |
| Polygonaceae | |
Polygonum achoreum x aviculare subsp. depressum
| | | |
| Polygonaceae | |
Polygonum acidulum
| Willd. | | |
| Polygonaceae | * |
Polygonum acre
| Lam. | Fl. Franç. 3: 234 | 1778 [1779] |
| Polygonaceae | ! |
Polygonum acre
| Kunth | Nov. Gen. Sp. (quarto ed.) 2: 179 | 1817 |
| Polygonaceae | ! |
Polygonum acuminatum
| Kunth | Nov. Gen. Sp. (quarto ed.) 2: 178 | 1817 |
| Polygonaceae | * |
Polygonum acuminatum
| Baker & C.H. Wright | Fl. Trop. Afr. 6, 1: 112 | 1909 |
| Polygonaceae | |
Polygonum acutatum
| Lehm. | | |
| Polygonaceae | |
Polygonum adenophyllum
| Cham. & Schltdl. | Linnaea 3: 48 | 1828 |
| Polygonaceae | |
Polygonum adenopodum
| Sam. | Symb. Sin. 7(1): 181–182 | 1929 |
| Polygonaceae | |
Polygonum adpressum
| Labill. | Nov. Holl. Pl. 1: 99, t. 127 | 1805 |
| Polygonaceae | |
Polygonum aequale
| Lindm. | Svensk Bot. Tidskr. 6(3): 692–693, pl. 23, f. 9–14; pl. 26 | 1912 |
| Polygonaceae | |
Polygonum affine
| D. Don | Prodr. Fl. Nepal. 70 | 1825 |
| Polygonaceae | |
Polygonum afghanicum
| Meisn. | Prodr. 14: 90 | 1856 |
| Polygonaceae | |
Polygonum afromontanum
| Greenway | Kew Bull. 1952: 355 | 1952 |
| Polygonaceae | |
Polygonum afyonicum
| Leblebici & Gemici | Notes Roy. Bot. Gard. Edinburgh 42(2): 321-323, fig. 1 | 1985 |
| Polygonaceae | |
Polygonum agreste
| Sumner | | |
| Polygonaceae | |
Polygonum agrestinum
| Jord. ex Boreau | | |
| Polygonaceae | |
Polygonum ajanense
| (Regel & Tiling) Grig. | Fl. SSSR 5: 666, pl. 46, f. 2 | 1936 |
| Polygonaceae | ** |
Polygonum alaskanum
| (Small) W. Wight ex Hultén | Fl. Alaska Yukon 4: 610 | 1944 |
| Polygonaceae | |
Polygonum alaskanum
| (Small) W. Wight ex Harshb. | Proc. Amer. Philos. Soc. 67: 230 | 1928 |
| Polygonaceae | |
Polygonum alaskanum
| Wight | Acta Univ. Lund. 2 40(1): 610-611 | 1944 |
| Polygonaceae | ! |
Polygonum alatum
| Buch.-Ham. ex D. Don | Prodr. Fl. Nepal. 72, 154 | 1825 |
| Polygonaceae | |
Polygonum albanicum
| Jáv. | Bot. Közlem. 19: 18 | 1921 |
| Polygonaceae | |
Polygonum alfredi
| Pilg. | | |
| Polygonaceae | |
Polygonum alismaefolium
| Fedde | Just's Bot. Jahresber. 32(1): 417 | 1905 |
| Polygonaceae | |
Polygonum allocarpum
| S.F. Blake | Rhodora 19(226): 234–235 | 1917 |
| Polygonaceae | |
Polygonum alopecuroides
| Turcz. ex Meissn. | | |
| Polygonaceae | |
Polygonum alopecuroides
| Turcz. ex Besser | Fl. Beibl. 23 | 1834 |
| Polygonaceae | |
Polygonum alpestre
| C.A. Mey. | Verz. Pfl. Casp. Meer. 157 | 1831 |
| Polygonaceae | |
Polygonum alpinum
| All. | Auct. Syn. 42 | 1773 |
| Polygonaceae | |
Polygonum ambiguum
| Meisn. | | |
| Polygonaceae | |
Polygonum americanum
| (Fisch. & C.A. Mey.) T.M. Schust. & Reveal | Taxon 60(6): 1663 | 2011 |
| Polygonaceae | |
Polygonum amgense
| Michaleva & Perf. | | |
| Polygonaceae | |
Polygonum ammanioides
| Jaub. & Spach | Ill. Pl. Orient. , pl. 19 | 1844 |
| Polygonaceae | |
Polygonum ammophilum
| Fedde | Just's Bot. Jahresber. 32(1): 415 | 1905 |
| Polygonaceae | |
Polygonum amoenum
| Blume | | |
| Polygonaceae | |
Polygonum amphibium
| L. | Sp. Pl. 1: 361 | 1753 |
| Polygonaceae | |
Polygonum amphilibium
| L. | Sp. Pl. 1: 361 | 1753 |
| Polygonaceae | |
Polygonum amplexicaule
| D. Don | Prodr. Fl. Nepal. 70 | 1825 |
| Polygonaceae | |
Polygonum amurense
| Vorosch. | | |
| Polygonaceae | |
Polygonum amurense
| Nieuwl. | Amer. Midl. Naturalist 2: 183 | 1821 |
| Polygonaceae | |
Polygonum anacampseros
| L. | | |
| Polygonaceae | |
Polygonum andrzejowskianum
| Klokov | | |
| Polygonaceae | |
Polygonum anguillanum
| Koidz. | Acta Phytotax. Geobot. 8(1): 51 | 1939 |
| Polygonaceae | |
Polygonum angustifolium
| Pall. | Reise Russ. Reich. 3: 230 | 1776 |
| Polygonaceae | |
Polygonum antihaemorrhoidale
| Mart. | Reise Bras. 2: 550 | 1828 |
| Polygonaceae | |
Polygonum aphyllum
| Krock. | | |
| Polygonaceae | |
Polygonum apoense
| Elmer | Leafl. Philipp. Bot. 8: 2769 | 1915 |
| Polygonaceae | |
Polygonum araraticum
| Kom. | | |
| Polygonaceae | |
Polygonum arborescens
| Vell. | Fl. Flumin. 162 | 1829 |
| Polygonaceae | |
Polygonum arcticum
| Pall. ex Spreng. | | |
| Polygonaceae | |
Polygonum arcuatum
| Greene | Pittonia 5: 201 | 1903 |
| Polygonaceae | |
Polygonum arenarium
| Waldst. & Kit. | Descr. Icon. Pl. Hung. 1: 69 | 1801 |
| Polygonaceae | |
Polygonum arenastrum
| Boreau | Fl. Centre France (ed. 3) 2: 559 | 1857 |
| Polygonaceae | |
Polygonum arenicola
| Suksd. | Werdenda 1(2): 8–9 | 1923 |
| Polygonaceae | |
Polygonum argenteum
| Skvortsov | Diagn. Pl. Nov. Mandsh. 4 | 1943 |
| Polygonaceae | |
Polygonum argenteum
| Ehrenb. ex Meisn. | Prodr. 14: 88 | 1856 |
| Polygonaceae | |
Polygonum argyrocoleon
| Steud. ex Kunze | Linnaea 20(1): 17–18 | 1847 |
| Polygonaceae | |
Polygonum arianum
| Grigorj. | Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 1: 104 | 1933 |
| Polygonaceae | ! |
Polygonum arifolium
| L. | Sp. Pl. 1: 364 | 1753 |
| Polygonaceae | * |
Polygonum arifolium
| Thunb. | Fl. Jap. 168 | 1784 |
| Polygonaceae | |
Polygonum articulatum
| L. | Sp. Pl. 1: 363 | 1753 |
| Polygonaceae | |
Polygonum aschersonianum
| H. Gross | | |
| Polygonaceae | |
Polygonum asclepiadeum
| Fedde | Just's Bot. Jahresber. 32(1): 415 | 1905 |
| Polygonaceae | |
Polygonum assamicum
| Meisn. | Prodr. 14(1): 111 | 1856 |
| Polygonaceae | |
Polygonum atlanticum
| (B.L. Rob.) E.P. Bicknell | Bull. Torrey Bot. Club 36(8): 450 | 1909 |
| Polygonaceae | |
Polygonum atraphaxiforme
| Botsch. | Novosti Sist. Vyssh. Rast. 1965: 270 | 1965 |
| Polygonaceae | |
Polygonum atraphaxis
| Thunb. | | |
| Polygonaceae | |
Polygonum atraphaxoides
| Thunb. | Prodr. Pl. Cap. 1: 77 | 1754 |
| Polygonaceae | * |
Polygonum attenuatum
| Petrov ex Kom. | Fl. SSSR 5: 725–726 | 1936 |
| Polygonaceae | |
Polygonum attenuatum
| R. Br. | Prodr. 420 | 1810 |
| Polygonaceae | |
Polygonum aubertii
| L. Henry | Rev. Hort. (Paris) 79(4): 82–83, f. 23–24 | 1907 |
| Polygonaceae | * |
Polygonum auriculatum
| Makino | Bot. Mag. (Tokyo) 17: 117 | 1903 |
| Polygonaceae | ! |
Polygonum auriculatum
| Meisn. | Monogr. Polyg. 59, t. 6 | 1826 |
| Polygonaceae | |
Polygonum austiniae
| Greene | Bull. Calif. Acad. Sci. 1(4A): 212 | 1886 [1885] |
| Polygonaceae | |
Polygonum autumnale
| Brenckle | Bull. Torrey Bot. Club 68(7): 495, f. 3 | 1941 |
| Polygonaceae | |
Polygonum aviculare
| L. | Sp. Pl. 1: 362–363 | 1753 |
| Polygonaceae | |
Polygonum axillare
| Hook. f. | London J. Bot. 6: 278 | 1847 |
| Polygonaceae | |
Polygonum babingtonii
| Hance | Ann. Sci. Nat., Bot., sér. 7, 5: 239 | 1886 |
| Polygonaceae | |
Polygonum baicalense
| Sipliv. | | |
| Polygonaceae | |
Polygonum balansae
| Boiss. & Reut. | | |
| Polygonaceae | |
Polygonum baldschuanicum
| Regel | Trudy Imp. S.-Peterburgsk. Bot. Sada 8: 684-685, t. 10 | 1884 |
| Polygonaceae | ! |
Polygonum barbatum
| L. | Sp. Pl. 1: 362 | 1753 |
| Polygonaceae | * |
Polygonum barbatum
| Baker & C.H. Wright | Fl. Trop. Afr. 6(1): 109 | 1909 |
| Polygonaceae | |
Polygonum barbatum
| Walter | Fl. Carol. 131 | 1788 |
| Polygonaceae | |
Polygonum bargusinense
| Peschkova | | |
| Polygonaceae | |
Polygonum basiramium
| (Small) T.M. Schust. & Reveal | Taxon 60(6): 1663 | 2011 |
| Polygonaceae | |
Polygonum bellardii
| All. | Fl. Pedem. 2: 207–208, pl. 90, f. 2 | 1785 |