| Blechnaceae | * |
Blechnum "orientale" (in error)
| L. | Sp. Pl. 2: 1077 | 1753 |
| Blechnaceae | * |
Blechnum acuminatum
| Sturm | Flora 36: 362 | 1853 |
| Blechnaceae | ! |
Blechnum acuminatum
| Fée | Mém. Foug. 75 | 1852 |
| Blechnaceae | |
Blechnum acutum
| (Desv.) Mett. | Ann. Sci. Nat., Bot., sér. 5, 2: 225 | 1864 |
| Blechnaceae | |
Blechnum aduncum
| Liebm. | Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd., ser. 5 1: 237 | 1849 |
| Blechnaceae | |
Blechnum × aduncum
| Liebm. | | |
| Blechnaceae | |
Blechnum aequatoriense
| A. Rojas | Mét. Ecol. Sist. 3(Supl. 1): 9–10, f. 1a–c | 2008 |
| Blechnaceae | |
Blechnum alpinum
| Mett. | | |
| Blechnaceae | |
Blechnum amabile
| Makino | Bot. Mag. (Tokyo) 11: 83 | 1897 |
| Blechnaceae | |
Blechnum ambiguum
| Kaulf. | | |
| Blechnaceae | |
Blechnum andinum
| (Baker) C. Chr. | Index Filic. 150 | 1905 |
| Blechnaceae | |
Blechnum angustatum
| Schrad. | Gött. Gel. Anz. 87: 2 | 1824 |
| Blechnaceae | |
Blechnum angustifolium
| (Kunth) Hieron. | Bot. Jahrb. Syst. 34: 472 | 1904 |
| Blechnaceae | |
Blechnum angustifolium
| Willd. | Sp. Pl. 5: 414 | 1810 |
| Blechnaceae | |
Blechnum angustifrons
| Fée | Mém. Foug. 7: 25, t. 9, f. 2 | 1857 |
| Blechnaceae | |
Blechnum anthracinum
| R.C. Moran | Novon 2(2): 132 | 1992 |
| Blechnaceae | ! |
Blechnum antillanum
| Proctor | Brit. Fern Gaz. 9(6): 214 | 1965 |
| Blechnaceae | |
Blechnum × antillanum
| Proctor | Brit. Fern Gaz. 9(6): 214 | 1965 |
| Blechnaceae | |
Blechnum appendiculatum
| Willd. | Sp. Pl. 5(1): 410 | 1810 |
| Blechnaceae | |
Blechnum arborescens
| (Klotzsch) Hieron. | Hedwigia 47: 239 | 1908 |
| Blechnaceae | |
Blechnum arcuatum
| J. Rémy & Fée | | |
| Blechnaceae | |
Blechnum articulatum
| (F. Muell.) S.B. Andrews | Austrobaileya 1: 11 | 1977 |
| Blechnaceae | |
Blechnum ascendens
| A. Rojas | Mét. Ecol. Sist. 3(Supl. 1): 10, f. 2a, b | 2008 |
| Blechnaceae | |
Blechnum asperum
| (Klotzsch) J.W. Sturm | Abh. Naturhist. Ges. Nürnberg 2: 172 | 1858 |
| Blechnaceae | |
Blechnum asplenioides
| Sw. | Kongl. Vetensk. Acad. Handl. 1817(1): 72, t. 3, f. 3 | 1817 |
| Blechnaceae | |
Blechnum atropurpureum
| A.R. Sm. | Acta Bot. Venez. 14(3): 5 | 1984 |
| Blechnaceae | |
Blechnum attenuatum
| (Sw.) Mett. | Fil. Hort. Bot. Lips. 64, t. 3, f. 1–6 | 1856 |
| Blechnaceae | |
Blechnum auratum
| (Fée) R.M. Tryon & Stolze | Fieldiana, Bot., n.s. 32: 67 | 1993 |
| Blechnaceae | |
Blechnum aureosquamum
| A. Rojas | | |
| Blechnaceae | ! |
Blechnum auriculatum
| Cav. | Descr. Pl. 262 | 1802 |
| Blechnaceae | * |
Blechnum auriculatum
| Endl. | Cat. Horti Vindob. 1: 9 | 1842 |
| Blechnaceae | |
Blechnum australe
| L. | Mant. Pl. 130 | 1767 |
| Blechnaceae | |
Blechnum austrobrasilianum
| de la Sota | Bol. Soc. Argent. Bot. 16: 248 | 1975 |
| Blechnaceae | |
Blechnum austrocaledonicum
| Christenh. | Phytotaxa 19: 19 | 2011 |
| Blechnaceae | |
Blechnum bakeri
| C. Chr. | Index Fil. 151 | 1905 |
| Blechnaceae | |
Blechnum bibreae
| Mett. | Fil. Lechl. 1: 14 | 1856 |
| Blechnaceae | |
Blechnum bicolor
| M. Kessler & A.R. Sm. | Amer. Fern J. 97(2): 66 | 2007 |
| Blechnaceae | |
Blechnum biforme
| Christ | Farnkr. Erde 180 | 1897 |
| Blechnaceae | |
Blechnum binervatum
| (Poir.) C.V. Morton & Lellinger | Amer. Fern J. 57: 67 | 1967 |
| Blechnaceae | |
Blechnum binerve
| C. Chr. | Cat. Pl. Madag., Pterid. 44 | 1932 |
| Blechnaceae | ! |
Blechnum blechnoides
| (Bory) Keyserl. | Polyp. Herb. Bunge 65 | 1873 |
| Blechnaceae | * |
Blechnum blechnoides
| (Lag. ex Sw.) C. Chr. | Index Filic. 151 | 1905 |
| Blechnaceae | * |
Blechnum blechnoides
| Desv. | | |
| Blechnaceae | |
Blechnum bolivianum
| M. Kessler & A.R. Sm. | Amer. Fern J. 97(2): 69 | 2007 |
| Blechnaceae | |
Blechnum boreale
| Sw. | J. Bot. (Schrader) 1800(2): 75 | 1801 |
| Blechnaceae | |
Blechnum boryanum
| Schltdl. | Adumbr. Pl. 35, t. 19 | 1827 |
| Blechnaceae | |
Blechnum brasiliense
| Desv. | Ges. Naturf. Freunde Berlin Mag. Neuesten Entdeck. Gesammten Naturk. 5: 330 | 1811 |
| Blechnaceae | |
Blechnum brevifolium
| G. Kunkel | Ber. Schweiz. Bot. Ges. 69: 313 | 1959 |
| Blechnaceae | |
Blechnum bruneum
| M. Kessler & A.R. Sm. | Amer. Fern J. 97(2): 71 | 2007 |
| Blechnaceae | |
Blechnum buchtienii
| Rosenst. | Repert. Spec. Nov. Regni Veg. 5: 231 | 1908 |
| Blechnaceae | |
Blechnum calophyllum
| Langsd. & Fisch. | Pl. Voy. Russes Monde 20: t. 23 | 1810 |
| Blechnaceae | |
Blechnum camfieldii
| Tindale | | |
| Blechnaceae | |
Blechnum campylotis
| (Kunze) J. Sm. | Ferns Brit. For. 198 | 1866 |
| Blechnaceae | |
Blechnum capense
| (L.) Schltdl. | Adumbr. Pl. 34, t. 18 | 1825 |
| Blechnaceae | |
Blechnum capense
| Burm. f. | | |
| Blechnaceae | |
Blechnum carolinianum
| Walter | Fl. Carol. 257 | 1788 |
| Blechnaceae | |
Blechnum cartilagineum
| Sw. | | |
| Blechnaceae | |
Blechnum castaneum
| Makino & Nemoto | Fl. Japan 1591 | 1925 |
| Blechnaceae | |
Blechnum × caudatum
| Cav. | Descr. Pl. 262 | 1802 |
| Blechnaceae | |
Blechnum caudatum
| Cav. | Descr. Pl. 262 | 1802 |
| Blechnaceae | |
Blechnum ceteraccinum
| Raddi | Opusc. Sci. 3: 294 | 1819 |
| Blechnaceae | |
Blechnum chambersii
| Tindale | | |
| Blechnaceae | |
Blechnum chilense
| (Kaulf.) Mett. | Fil. Lechl. 1: 14 | 1856 |
| Blechnaceae | |
Blechnum chiriquanum
| (Broadh.) C. Chr. | Index Filic., Suppl. 1, 16 | 1913 |
| Blechnaceae | |
Blechnum christensenii
| Ching | | 1934 |
| Blechnaceae | |
Blechnum christii
| C. Chr. | Index Filic. 152 | 1905 |
| Blechnaceae | ! |
Blechnum ciliatum
| C. Presl | Reliq. Haenk. 1(1): 50 | 1825 |
| Blechnaceae | * |
Blechnum ciliatum
| M. Martens & Galeotti | Mem. Foug. Mexique 50 | 1842 |
| Blechnaceae | |
Blechnum cochabambense
| M. Kessler & A.R. Sm. | Amer. Fern J. 97(2): 72 | 2007 |
| Blechnaceae | |
Blechnum cognatum
| C. Presl | Abh. Königl. Böhm. Ges. Wiss., ser. 5 6: 467–468 | 1851 |
| Blechnaceae | |
Blechnum colensoi
| N.A. Wakef. | Victoria Naturalist 72 | 1956 |
| Blechnaceae | |
Blechnum colombiense
| Hieron. | Hedwigia 47: 244, t. 5, f. 17 | 1908 |
| Blechnaceae | |
Blechnum confluens
| Schltdl. & Cham. | Linnaea 5: 613 | 1830 |
| Blechnaceae | |
Blechnum corcovadense
| Raddi | Opusc. Sci. 3: 294 | 1819 |
| Blechnaceae | |
Blechnum cordatum
| (Desv.) Hieron. | Hedwigia 47: 239 | 1908 |
| Blechnaceae | |
Blechnum corralense
| Esp. Bustos | Revista Chilena Hist. Nat. 36: 92 | 1932 |
| Blechnaceae | |
Blechnum costaricense
| (Christ) C. Chr. | Index Filic. 152 | 1905 |
| Blechnaceae | |
Blechnum crispum
| Hartm. | Handb. Skand. Fl. 372–373 | 1820 |
| Blechnaceae | |
Blechnum cycadifolium
| J.W. Sturm | | |
| Blechnaceae | |
Blechnum danaeaceum
| (Kunze) Christ | Prim. Fl. Costaric. 3(1): 22–23 | 1901 |
| Blechnaceae | |
Blechnum delicatum
| Maxon & C.V. Morton | Bull. Torrey Bot. Club 66: 41 | 1939 |
| Blechnaceae | |
Blechnum dendrophilum
| (Sodiro) C. Chr. | Index Filic. 153 | 1905 |
| Blechnaceae | |
Blechnum diplotaxicum
| Fée | Crypt. Vasc. Brésil 1: 25, t. 8, f. 1 | 1869 |
| Blechnaceae | |
Blechnum discolor
| Keyserl. | Polyp. Herb. Bunge 66 | 1873 |
| Blechnaceae | |
Blechnum dissectum
| (Parris) Christenh. | Phytotaxa 19: 19 | 2011 |
| Blechnaceae | |
Blechnum distans
| C. Presl | Tent. Pterid. 103 | 1836 |
| Blechnaceae | |
Blechnum divergens
| (Kunze) Mett. | Ann. Sci. Nat., Bot. 2: 225 | 1864 |
| Blechnaceae | |
Blechnum divergens x stoloniferum
| | | |
| Blechnaceae | |
Blechnum diversifolium
| Mett. | | |
| Blechnaceae | |
Blechnum dives
| (Kunze) Christenh. | Phytotaxa 19: 19 | 2011 |
| Blechnaceae | |
Blechnum doodianum
| Christenh. | Phytotaxa 19: 19 | 2011 |
| Blechnaceae | |
Blechnum eburneum
| Christ | Bull. Acad. Int. Géogr. Bot. 11(153–154): 233, f. s.n. | 1902 |
| Blechnaceae | |
Blechnum egenolfioides
| (Baker) C. Chr. | Index Filic. 153 | 1906 |
| Blechnaceae | |
Blechnum ekmanii
| Brause ex Urb. | Arkiv for Botanik 17(7): 69 | 1922 |
| Blechnaceae | |
Blechnum ensiforme
| (Liebm.) C. Chr. | Index Filic. 153 | 1905 |
| Blechnaceae | |
Blechnum exaltatum
| (Fée) Duek | Adansonia 11: 727 | 1871 |
| Blechnaceae | |
Blechnum faberi
| C. Chr. | Index Filic. fasc. 3: 153 | 1905 |
| Blechnaceae | |
Blechnum falcatum
| Link | Hort. Berol. 2: 77 | 1833 |
| Blechnaceae | * |
Blechnum falciculatum
| C. Presl | Epim. Bot. 106 | 1849 [1851] |
| Blechnaceae | |
Blechnum × falciculatum
| C. Presl | Abh. Königl. Böhm. Ges. Wiss., ser. 5 6: 466–467 | 1851 |