| Clematis aethusifolia Turcz. | | a | | Clematis aethusifolia Turcz. | | 1 | |
| Clematis aethusifolia Turcz. var. latisecta Maxim. | | a | i | Clematis aethusifolia Turcz. var.latisecta Maxim. | | 2 | |
| Clematis afoliata Buchanan | | a | | Clematis afoliata Buchanan | | 3 | |
| Clematis alpina (L.) Mill. | | a | | Clematis alpina (L.) Mill. | | 4 | |
| Clematis alpina (L.) Mill. subsp. sibirica (Mill.) Kuntze | | a | i | Clematis alpina (L.) Mill. subsp. sibirica (Mill.) Kuntze | | 6 | |
| Clematis apiifolia DC. | | a | | Clematis apiifolia DC. | | 7 | |
| Clematis apiifolia DC. var. obtusidentata Rehder & E. H. Wilson | Clematis apiifolia DC. var. argentilucida (H. Lév. & Vaniot) W. T. Wang | | i | Clematis apiifolia DC. var.obtusidentata Rehder & E. H. Wilson | Clematis apiifolia DC. var.argentilucida (H. Lév. & Vaniot) W. T. Wang | 8 | 448356 |
| Clematis apiifolia DC. var. biternata Makino | Clematis brevicaudata DC. | | i | Clematis apiifolia DC. var.biternata Makino | Clematis brevicaudata DC. | 9 | 413219 |
| Clematis aristata Ker Gawl. | | a | | Clematis aristata Ker Gawl. | | 10 | |
| Clematis armandii Franch. | | a | | Clematis armandii Franch. | | 11 | |
| Clematis ×aromatica Lenné & K. Koch | | a | | Clematis aromatica Lenné & K. Koch | | 12 | |
| Clematis boninensis Hayata | Clematis terniflora DC. var. boninensis (Hayata) W. T. Wang | | | Clematis boninensis Hayata | Clematis terniflora DC. var.boninensis (Hayata) W. T. Wang | 13 | 479751 |
| Clematis brachiata Thunb. | | a | | Clematis brachiata Thunb. | | 14 | |
| Clematis buchananiana DC. | | a | | Clematis buchananiana DC. | | 15 | |
| Clematis calycina Aiton | Clematis cirrhosa L. | | | Clematis calycina Aiton | Clematis cirrhosa L. | 16 | 21 |
| Clematis campaniflora Brot. | | a | | Clematis campaniflora Brot. | | 17 | |
| Clematis chinensis Osbeck | | a | | Clematis chinensis Osbeck | | 18 | |
| Clematis chrysocoma Franch. | | a | | Clematis chrysocoma Franch. | | 19 | |
| Clematis chrysocoma Franch. var. sericea (Franch. ex Finet & Gagnep.) C. K. Schneid. | Clematis spooneri Rehder & E. H. Wilson | | i | Clematis chrysocoma Franch. var.sericea (Franch. ex Finet & Gagnep.) C. K. Schneid. | Clematis spooneri Rehder & E. H. Wilson | 20 | 118 |
| Clematis cirrhosa L. | | a | | Clematis cirrhosa L. | | 21 | |
| Clematis coccinea Engelm. ex A. Gray | Clematis texensis Buckley | | | Clematis coccinea Engelm. ex A. Gray | Clematis texensis Buckley | 22 | 124 |
| Clematis colensoi Hook. f. | Clematis forsteri J. F. Gmel. | | | Clematis colensoi Hook. f. | Clematis forsteri J. F. Gmel. | 23 | 419670 |
| Clematis commutata Kuntze | | a | | Clematis commutata Kuntze | | 24 | |
| Clematis connata DC. | | a | | Clematis connata DC. | | 25 | |
| Clematis crassifolia Benth. | | a | | Clematis crassifolia Benth. | | 26 | |
| Clematis delavayi Franch. | | a | | Clematis delavayi Franch. | | 28 | |
| Clematis denticulata Vell. | Clematis montevidensis Spreng. | | | Clematis denticulata Vell. | Clematis montevidensis Spreng. | 29 | 95 |
| Clematis ×eriostemon Decne. | Clematis ×diversifolia DC. | | | Clematis eriostemon Decne. | Clematis diversifolia DC. | 31 | 461989 |
| Clematis fargesii Franch. | Clematis potaninii Maxim. | | | Clematis fargesii Franch. | Clematis potaninii Maxim. | 32 | 400032 |
| Clematis fargesii Franch. var. souliei Finet & Gagnep. | Clematis potaninii Maxim. | | i | Clematis fargesii Franch. var.souliei Finet & Gagnep. | Clematis potaninii Maxim. | 33 | 400032 |
| Clematis finetiana H. Lév. & Vaniot | | a | | Clematis finetiana H. Lév. & Vaniot | | 34 | |
| Clematis flabellata Nakai | | a | | Clematis flabellata Nakai | | 35 | |
| Clematis flammula L. | | a | | Clematis flammula L. | | 36 | |
| Clematis florida Thunb. | | a | | Clematis florida Thunb. | | 37 | |
| Clematis florida Thunb. f. sieboldii (D. Don) Rehder | Clematis florida Thunb. var. florida | | i | Clematis florida Thunb. f. sieboldii (D. Don) Rehder | Clematis florida Thunb. var.florida | 38 | 410460 |
| Clematis florida Thunb. var. sieboldii D. Don | Clematis florida Thunb. var. florida | | i | Clematis florida Thunb. var.sieboldii D. Don | Clematis florida Thunb. var.florida | 39 | 410460 |
| Clematis foetida Raoul | | a | | Clematis foetida Raoul | | 40 | |
| Clematis fremontii S. Watson | | a | | Clematis fremontii S. Watson | | 42 | |
| Clematis fujisanensis Hisauti & H. Hara | | a | | Clematis fujisanensis Hisauti & H. Hara | | 43 | |
| Clematis fusca Turcz. | | a | | Clematis fusca Turcz. | | 44 | |
| Clematis fusca Turcz. var. mandshurica Regel | Clematis fusca Turcz. | | i | Clematis fusca Turcz. var.mandshurica Regel | Clematis fusca Turcz. | 45 | 44 |
| Clematis fusca Turcz. var. violacea Maxim. | | a | i | Clematis fusca Turcz. var.violacea Maxim. | | 46 | |
| Clematis gentianoides DC. | | a | | Clematis gentianoides DC. | | 47 | |
| Clematis glauca Willd. | Clematis orientalis L. var. daurica (Pers.) Kuntze | | | Clematis glauca Willd. | Clematis orientalis L. var.daurica (Pers.) Kuntze | 48 | 407825 |
| Clematis glauca Willd. var. akebioides (Maxim.) Rehder & E. H. Wilson | Clematis akebioides (Maxim.) hort. ex H. J. Veitch | | i | Clematis glauca Willd. var.akebioides (Maxim.) Rehder & E. H. Wilson | Clematis akebioides (Maxim.) hort. ex H. J. Veitch | 49 | 407390 |
| Clematis glauca Willd. var. angustifolia Ledeb. | Clematis orientalis L. var. orientalis | | i | Clematis glauca Willd. var.angustifolia Ledeb. | Clematis orientalis L. var.orientalis | 50 | 419673 |
| Clematis globosa Royle | Clematis orientalis L. var. latifolia Hook. f. & Thomson | | | Clematis globosa Royle | Clematis orientalis L. var.latifolia Hook. f. & Thomson | 51 | 100 |
| Clematis ×globulosa Lemoine | | a | | Clematis globulosa Lemoine | | 52 | |
| Clematis glycinoides DC. | | a | | Clematis glycinoides DC. | | 53 | |
| Clematis gouriana Roxb. ex DC. | | a | | Clematis gouriana Roxb. ex DC. | | 54 | |
| Clematis gracilifolia Rehder & E. H. Wilson | | a | | Clematis gracilifolia Rehder & E. H. Wilson | | 55 | |
| Clematis grandiflora DC. | | a | | Clematis grandiflora DC. | | 56 | |
| Clematis grata Wall. | | a | | Clematis grata Wall. | | 57 | |
| Clematis grata Wall. var. grandidentata Rehder & E. H. Wilson | Clematis grandidentata (Rehder & E. H. Wilson) W. T. Wang | | i | Clematis grata Wall. var.grandidentata Rehder & E. H. Wilson | Clematis grandidentata (Rehder & E. H. Wilson) W. T. Wang | 58 | 419674 |
| Clematis graveolens Lindl. | | a | | Clematis graveolens Lindl. | | 59 | |
| Clematis grewiiflora DC. | | a | | Clematis grewiiflora DC. | | 60 | |
| Clematis henryi Oliv. | | a | | Clematis henryi Oliv. | | 61 | |
| Clematis heracleifolia DC. | | a | | Clematis heracleifolia DC. | | 62 | |
| Clematis heracleifolia DC. subsp. davidiana (Decne. ex B. Verl.) Kuntze | Clematis tubulosa Turcz. | | i | Clematis heracleifolia DC. subsp. davidiana (Decne. ex B. Verl.) Kuntze | Clematis tubulosa Turcz. | 63 | 418903 |
| Clematis hexapetala Pall. | | a | | Clematis hexapetala Pall. | | 64 | |
| Clematis hexasepala DC. | Clematis forsteri J. F. Gmel. | | | Clematis hexasepala DC. | Clematis forsteri J. F. Gmel. | 65 | 419670 |
| Clematis hilarii Spreng. | Clematis montevidensis Spreng. | | | Clematis hilarii Spreng. | Clematis montevidensis Spreng. | 66 | 95 |
| Clematis incisodentata A. Rich. | Clematis hirsuta Perr. & Guill. | | | Clematis incisodentata A. Rich. | Clematis hirsuta Perr. & Guill. | 68 | 404236 |
| Clematis indivisa Willd. | Clematis paniculata J. F. Gmel. | | | Clematis indivisa Willd. | Clematis paniculata J. F. Gmel. | 69 | 419675 |
| Clematis indivisa Willd. var. lobata Hook. | Clematis paniculata J. F. Gmel. | | i | Clematis indivisa Willd. var.lobata Hook. | Clematis paniculata J. F. Gmel. | 70 | 419675 |
| Clematis integrifolia L. | | a | | Clematis integrifolia L. | | 71 | |
| Clematis integrifolia L. var. durandii hort. ex Kuntze, nom. inval. | Clematis ×durandii T. Durand ex Kuntze | | i | Clematis integrifolia L. var.durandii hort. ex Kuntze, nom. inval. | Clematis durandii T. Durand ex Kuntze | 72 | 50022 |
| Clematis intermedia Carrière | Clematis ×diversifolia DC. | | | Clematis intermedia Carrière | Clematis diversifolia DC. | 74 | 461989 |
| Clematis intricata Bunge | | a | | Clematis intricata Bunge | | 75 | |
| Clematis ×jackmanii T. Moore | | a | | Clematis jackmanii T. Moore | | 76 | |
| Clematis japonica Thunb. | | a | | Clematis japonica Thunb. | | 78 | |
| Clematis japonica Thunb. var. brevipedicellata Makino | Clematis tosaensis Makino | | i | Clematis japonica Thunb. var.brevipedicellata Makino | Clematis tosaensis Makino | 79 | 125 |
| Clematis japonica Thunb. var. cremea Makino | Clematis tosaensis Makino f. cremea (Makino) Tamura | | i | Clematis japonica Thunb. var.cremea Makino | Clematis tosaensis Makino f. cremea (Makino) Tamura | 80 | 50023 |
| Clematis koreana Kom. | | a | | Clematis koreana Kom. | | 81 | |
| Clematis lanuginosa Lindl. & Paxton | | a | | Clematis lanuginosa Lindl. & Paxton | | 82 | |
| Clematis lasiandra Maxim. | | a | | Clematis lasiandra Maxim. | | 83 | |
| Clematis macropetala Ledeb. | | a | | Clematis macropetala Ledeb. | | 84 | |
| Clematis mandshurica Rupr. | Clematis terniflora DC. var. mandshurica (Rupr.) Ohwi | | | Clematis mandshurica Rupr. | Clematis terniflora DC. var.mandshurica (Rupr.) Ohwi | 85 | 404246 |
| Clematis maximowicziana Franch. & Sav. | Clematis terniflora DC. | | | Clematis maximowicziana Franch. & Sav. | Clematis terniflora DC. | 86 | 316251 |
| Clematis meyeniana Walp. | | a | | Clematis meyeniana Walp. | | 87 | |
| Clematis microphylla DC. | | a | | Clematis microphylla DC. | | 88 | |
| Clematis montana Buch.-Ham. ex DC. | | a | | Clematis montana Buch.-Ham. ex DC. | | 89 | |
| Clematis montana Buch.-Ham. ex DC. var. lilacina Lemoine | Clematis montana Buch.-Ham. ex DC. | | i | Clematis montana Buch.-Ham. ex DC. var.lilacina Lemoine | Clematis montana Buch.-Ham. ex DC. | 90 | 89 |
| Clematis montana Buch.-Ham. ex DC. var. rubens E. H. Wilson | | a | i | Clematis montana Buch.-Ham. ex DC. var.rubens E. H. Wilson | | 91 | |
| Clematis montana Buch.-Ham. ex DC. var. sericea Franch. ex Finet & Gagnep. | Clematis spooneri Rehder & E. H. Wilson | | i | Clematis montana Buch.-Ham. ex DC. var.sericea Franch. ex Finet & Gagnep. | Clematis spooneri Rehder & E. H. Wilson | 93 | 118 |
| Clematis montana Buch.-Ham. ex DC. var. wilsonii Sprague | | a | i | Clematis montana Buch.-Ham. ex DC. var.wilsonii Sprague | | 94 | |
| Clematis montevidensis Spreng. | | a | | Clematis montevidensis Spreng. | | 95 | |
| Clematis napaulensis DC. | | a | | Clematis napaulensis DC. | | 96 | |
| Clematis ochotensis (Pall.) Poir. | Clematis alpina (L.) Mill. subsp. ochotensis (Pall.) Kuntze | | | Clematis ochotensis (Pall.) Poir. | Clematis alpina (L.) Mill. subsp. ochotensis (Pall.) Kuntze | 97 | 462498 |
| Clematis orientalis L. | | a | | Clematis orientalis L. | | 98 | |
| Clematis orientalis L. var. akebioides Maxim. | Clematis akebioides (Maxim.) hort. ex H. J. Veitch | | i | Clematis orientalis L. var.akebioides Maxim. | Clematis akebioides (Maxim.) hort. ex H. J. Veitch | 99 | 407390 |
| Clematis orientalis L. var. latifolia Hook. f. & Thomson | | a | i | Clematis orientalis L. var.latifolia Hook. f. & Thomson | | 100 | |
| Clematis paniculata Thunb. | Clematis terniflora DC. | | | Clematis paniculata Thunb. | Clematis terniflora DC. | 101 | 316251 |
| Clematis patens C. Morren & Decne. | | a | | Clematis patens C. Morren & Decne. | | 102 | |
| Clematis pierotii Miq. | | a | | Clematis pierotii Miq. | | 103 | |
| Clematis pitcheri Torr. & A. Gray | | a | | Clematis pitcheri Torr. & A. Gray | | 104 | |
| Clematis pseudoflammula Schmalh. ex Lipsky | | a | | Clematis pseudoflammula Schmalh. ex Lipsky | | 105 | |
| Clematis pubescens Benth. | Clematis rhodocarpa Rose | | | Clematis pubescens Benth. | Clematis rhodocarpa Rose | 106 | 448353 |
| Clematis ranunculoides Franch. | | a | | Clematis ranunculoides Franch. | | 107 | |
| Clematis recta L. | | a | | Clematis recta L. | | 108 | |
| Clematis recta L. var. mandshurica (Rupr.) Maxim. | Clematis terniflora DC. var. mandshurica (Rupr.) Ohwi | | i | Clematis recta L. var.mandshurica (Rupr.) Maxim. | Clematis terniflora DC. var.mandshurica (Rupr.) Ohwi | 109 | 404246 |
| Clematis rehderiana Craib | | a | | Clematis rehderiana Craib | | 110 | |
| Clematis reticulata Walter | | a | | Clematis reticulata Walter | | 111 | |
| Clematis serratifolia Rehder | | a | | Clematis serratifolia Rehder | | 112 | |
| Clematis simensis Fresen. | | a | | Clematis simensis Fresen. | | 113 | |
| Clematis simsii Sweet | Clematis crispa L. | | | Clematis simsii Sweet | Clematis crispa L. | 114 | 419680 |
| Clematis smilacifolia Wall. | | a | | Clematis smilacifolia Wall. | | 115 | |
| Clematis songarica Bunge | | a | | Clematis songarica Bunge | | 116 | |
| Clematis speciosa (Makino) Makino | | a | | Clematis speciosa (Makino) Makino | | 117 | |
| Clematis spooneri Rehder & E. H. Wilson | | a | | Clematis spooneri Rehder & E. H. Wilson | | 118 | |
| Clematis stanleyi Hook. | Clematis villosa DC. subsp. stanleyi (Hook.) Kuntze | | | Clematis stanleyi Hook. | Clematis villosa DC. subsp. stanleyi (Hook.) Kuntze | 119 | 419685 |
| Clematis stans Siebold & Zucc. | | a | | Clematis stans Siebold & Zucc. | | 120 | |
| Clematis stans Siebold & Zucc. var. austrojaponensis (Ohwi) Ohwi | | a | i | Clematis stans Siebold & Zucc. var.austrojaponensis (Ohwi) Ohwi | | 121 | |
| Clematis tangutica (Maxim.) Korsh. | | a | | Clematis tangutica (Maxim.) Korsh. | | 122 | |
| Clematis tangutica (Maxim.) Korsh. var. obtusiuscula Rehder & E. H. Wilson | Clematis tangutica (Maxim.) Korsh. subsp. obtusiuscula (Rehder & E. H. Wilson) Grey-Wilson | | i | Clematis tangutica (Maxim.) Korsh. var.obtusiuscula Rehder & E. H. Wilson | Clematis tangutica (Maxim.) Korsh. subsp. obtusiuscula (Rehder & E. H. Wilson) Grey-Wilson | 123 | 407385 |
| Clematis texensis Buckley | | a | | Clematis texensis Buckley | | 124 | |
| Clematis tosaensis Makino | | a | | Clematis tosaensis Makino | | 125 | |
| Clematis trichotoma Nakai | | a | | Clematis trichotoma Nakai | | 126 | |
| Clematis trifoliata Thunb. | Akebia trifoliata (Thunb.) Koidz. subsp. trifoliata | | | Clematis trifoliata Thunb. | Akebia trifoliata (Thunb.) Koidz. subsp. trifoliata | 127 | 419732 |
| Clematis ×triternata DC. | | a | | Clematis triternata DC. | | 128 | |
| Clematis ×triternata DC. f. rubromarginata (Jouin) Rehder | Clematis ×triternata DC. | | i | Clematis triternata DC. f. rubromarginata (Jouin) Rehder | Clematis triternata DC. | 129 | 128 |
| Clematis uncinata Champ. ex Benth. | | a | | Clematis uncinata Champ. ex Benth. | | 130 | |
| Clematis ×vedrariensis P. Vilm. | | a | | Clematis vedrariensis P. Vilm. | | 132 | |
| Clematis ×vedrariensis P. Vilm. var. rosea (Mottet) Rehder | Clematis ×vedrariensis P. Vilm. | | i | Clematis vedrariensis P. Vilm. var.rosea (Mottet) Rehder | Clematis vedrariensis P. Vilm. | 133 | 132 |
| Clematis veitchiana Craib | | a | | Clematis veitchiana Craib | | 134 | |
| Clematis ×vernalis Lemoine | | a | | Clematis vernalis Lemoine | | 135 | |
| Clematis vitalba L. | | a | | Clematis vitalba L. | | 136 | |
| Clematis viticella L. | | a | | Clematis viticella L. | | 137 | |
| Clematis viticella L. f. purpurea (Loudon) Rehder | Clematis viticella L. | | i | Clematis viticella L. f. purpurea (Loudon) Rehder | Clematis viticella L. | 138 | 137 |
| Clematis zeylanica (L.) Poir. | Naravelia zeylanica (L.) DC. | | | Clematis zeylanica (L.) Poir. | Naravelia zeylanica (L.) DC. | 139 | 25019 |
| Clematis ×durandii T. Durand ex Kuntze | | a | | Clematis durandii T. Durand ex Kuntze | | 50022 | |
| Clematis tosaensis Makino f. cremea (Makino) Tamura | | a | i | Clematis tosaensis Makino f. cremea (Makino) Tamura | | 50023 | |
| Clematis orientalis L. var. tangutica Maxim. | Clematis tangutica (Maxim.) Korsh. subsp. tangutica | | i | Clematis orientalis L. var.tangutica Maxim. | Clematis tangutica (Maxim.) Korsh. subsp. tangutica | 70186 | 407386 |
| Clematis ligusticifolia Nutt. | | a | | Clematis ligusticifolia Nutt. | | 316129 | |
| Clematis terniflora DC. | | a | | Clematis terniflora DC. | | 316251 | |
| Clematis hybr. | | a | | Clematis hybr. | | 317559 | |
| Clematis bojeri Hook. | | a | | Clematis bojeri Hook. | | 317892 | |
| Clematis spp. | | a | | Clematis spp. | | 318140 | |
| Clematis socialis Kral | | a | | Clematis socialis Kral | | 320177 | |
| Clematis morefieldii Kral | | a | | Clematis morefieldii Kral | | 320178 | |
| Clematis potaninii Maxim. | | a | | Clematis potaninii Maxim. | | 400032 | |
| Clematis viticaulis E. Steele | | a | | Clematis viticaulis E. Steele | | 400576 | |
| Clematis hirsutissima Pursh var. arizonica (A. Heller) R. O. Erickson | Clematis hirsutissima Pursh var. hirsutissima | | i | Clematis hirsutissima Pursh var.arizonica (A. Heller) R. O. Erickson | Clematis hirsutissima Pursh var.hirsutissima | 400875 | 419677 |
| Clematis arizonica A. Heller | Clematis hirsutissima Pursh var. hirsutissima | | | Clematis arizonica A. Heller | Clematis hirsutissima Pursh var.hirsutissima | 400876 | 419677 |
| Clematis pinnata Maxim. | | a | | Clematis pinnata Maxim. | | 403545 | |
| Clematis microphylla DC. var. microphylla | | a | i | Clematis microphylla DC. var.microphylla | | 404155 | |
| Clematis microphylla DC. var. leptophylla F. Muell. ex Benth. | | a | i | Clematis microphylla DC. var.leptophylla F. Muell. ex Benth. | | 404156 | |
| Clematis brevifolia Howell | Clematis ligusticifolia Nutt. | | | Clematis brevifolia Howell | Clematis ligusticifolia Nutt. | 404234 | 316129 |
| Clematis hirsuta Perr. & Guill. | | a | | Clematis hirsuta Perr. & Guill. | | 404236 | |
| Clematis welwitschii Hiern ex Kuntze | | a | | Clematis welwitschii Hiern ex Kuntze | | 404241 | |
| Clematis terniflora DC. var. robusta (Carrière) Tamura | Clematis terniflora DC. var. terniflora | | i | Clematis terniflora DC. var.robusta (Carrière) Tamura | Clematis terniflora DC. var.terniflora | 404242 | 419688 |
| Clematis flammula L. var. robusta Carrière | Clematis terniflora DC. | | i | Clematis flammula L. var.robusta Carrière | Clematis terniflora DC. | 404245 | 316251 |
| Clematis terniflora DC. var. mandshurica (Rupr.) Ohwi | | a | i | Clematis terniflora DC. var.mandshurica (Rupr.) Ohwi | | 404246 | |
| Clematis argentilucida (H. Lév. & Vaniot) W. T. Wang | Clematis apiifolia DC. var. argentilucida (H. Lév. & Vaniot) W. T. Wang | | | Clematis argentilucida (H. Lév. & Vaniot) W. T. Wang | Clematis apiifolia DC. var.argentilucida (H. Lév. & Vaniot) W. T. Wang | 407381 | 448356 |
| Clematis vitalba L. var. argentilucida H. Lév. & Vaniot | Clematis apiifolia DC. var. argentilucida (H. Lév. & Vaniot) W. T. Wang | | i | Clematis vitalba L. var.argentilucida H. Lév. & Vaniot | Clematis apiifolia DC. var.argentilucida (H. Lév. & Vaniot) W. T. Wang | 407382 | 448356 |
| Clematis aspleniifolia Schrenk ex Fisch. & C. A. Mey. | | a | | Clematis aspleniifolia Schrenk ex Fisch. & C. A. Mey. | | 407383 | |
| Clematis alpina (L.) Mill. subsp. alpina | | a | i | Clematis alpina (L.) Mill. subsp. alpina | | 407384 | |
| Clematis tangutica (Maxim.) Korsh. subsp. obtusiuscula (Rehder & E. H. Wilson) Grey-Wilson | | a | i | Clematis tangutica (Maxim.) Korsh. subsp. obtusiuscula (Rehder & E. H. Wilson) Grey-Wilson | | 407385 | |
| Clematis tangutica (Maxim.) Korsh. subsp. tangutica | | a | i | Clematis tangutica (Maxim.) Korsh. subsp. tangutica | | 407386 | |
| Clematis davidiana Decne. ex B. Verl. | Clematis tubulosa Turcz. | | | Clematis davidiana Decne. ex B. Verl. | Clematis tubulosa Turcz. | 407388 | 418903 |
| Clematis akebioides (Maxim.) hort. ex H. J. Veitch | | a | | Clematis akebioides (Maxim.) hort. ex H. J. Veitch | | 407390 | |
| Clematis parviloba Gardner & Champ. | | a | | Clematis parviloba Gardner & Champ. | | 407391 | |
| Clematis austrojapanensis Ohwi | Clematis stans Siebold & Zucc. var. austrojaponensis (Ohwi) Ohwi | | | Clematis austrojapanensis Ohwi | Clematis stans Siebold & Zucc. var.austrojaponensis (Ohwi) Ohwi | 407392 | 121 |
| Clematis viticella L. subsp. campaniflora (Brot.) Kuntze | Clematis campaniflora Brot. | | i | Clematis viticella L. subsp. campaniflora (Brot.) Kuntze | Clematis campaniflora Brot. | 407394 | 17 |
| Clematis orientalis L. var. daurica (Pers.) Kuntze | | a | i | Clematis orientalis L. var.daurica (Pers.) Kuntze | | 407825 | |
| Clematis daurica Pers. | Clematis orientalis L. var. daurica (Pers.) Kuntze | | | Clematis daurica Pers. | Clematis orientalis L. var.daurica (Pers.) Kuntze | 407826 | 407825 |
| Clematis virginiana L. | | a | | Clematis virginiana L. | | 409875 | |
| Clematis filamentosa Dunn | | a | | Clematis filamentosa Dunn | | 410458 | |
| Clematis florida Thunb. var. plena D. Don | | a | i | Clematis florida Thunb. var.plena D. Don | | 410459 | |
| Clematis florida Thunb. var. florida | | a | i | Clematis florida Thunb. var.florida | | 410460 | |
| Clematis peterae Hand.-Mazz. | | a | | Clematis peterae Hand.-Mazz. | | 410461 | |
| Clematis brevicaudata DC. | | a | | Clematis brevicaudata DC. | | 413219 | |
| Clematis peterae Hand.-Mazz. var. trichocarpa W. T. Wang | | a | i | Clematis peterae Hand.-Mazz. var.trichocarpa W. T. Wang | | 413220 | |
| Clematis pogonandra Maxim. | | a | | Clematis pogonandra Maxim. | | 413221 | |
| Clematis lasiantha Nutt. | | a | | Clematis lasiantha Nutt. | | 413300 | |
| Clematis fruticosa Turcz. | | a | | Clematis fruticosa Turcz. | | 413689 | |
| Clematis patens C. Morren & Decne. f. fortunei (T. Moore) Rehder | | a | i | Clematis patens C. Morren & Decne. f. fortunei (T. Moore) Rehder | | 414893 | |
| Clematis fortunei T. Moore | Clematis patens C. Morren & Decne. f. fortunei (T. Moore) Rehder | | | Clematis fortunei T. Moore | Clematis patens C. Morren & Decne. f. fortunei (T. Moore) Rehder | 414894 | 414893 |
| Clematis tubulosa Turcz. | | a | | Clematis tubulosa Turcz. | | 418903 | |
| Clematis forsteri J. F. Gmel. | | a | | Clematis forsteri J. F. Gmel. | | 419670 | |
| Clematis orientalis L. var. orientalis | | a | i | Clematis orientalis L. var.orientalis | | 419673 | |
| Clematis grandidentata (Rehder & E. H. Wilson) W. T. Wang | | a | | Clematis grandidentata (Rehder & E. H. Wilson) W. T. Wang | | 419674 | |
| Clematis paniculata J. F. Gmel. | | a | | Clematis paniculata J. F. Gmel. | | 419675 | |
| Clematis hirsutissima Pursh | | a | | Clematis hirsutissima Pursh | | 419676 | |
| Clematis hirsutissima Pursh var. hirsutissima | | a | i | Clematis hirsutissima Pursh var.hirsutissima | | 419677 | |
| Clematis hirsutissima Pursh var. scottii (Porter) R. O. Erickson | | a | i | Clematis hirsutissima Pursh var.scottii (Porter) R. O. Erickson | | 419678 | |
| Clematis scottii Porter | Clematis hirsutissima Pursh var. scottii (Porter) R. O. Erickson | | | Clematis scottii Porter | Clematis hirsutissima Pursh var.scottii (Porter) R. O. Erickson | 419679 | 419678 |
| Clematis crispa L. | | a | | Clematis crispa L. | | 419680 | |
| Clematis villosa DC. | | a | | Clematis villosa DC. | | 419681 | |
| Clematis villosa DC. subsp. villosa | | a | i | Clematis villosa DC. subsp. villosa | | 419682 | |
| Clematis villosa DC. subsp. kirkii (Oliv.) Brummitt | | a | i | Clematis villosa DC. subsp. kirkii (Oliv.) Brummitt | | 419683 | |
| Clematis villosa DC. subsp. oliveri (Hutch.) M. Johnson | | a | i | Clematis villosa DC. subsp. oliveri (Hutch.) M. Johnson | | 419684 | |
| Clematis villosa DC. subsp. stanleyi (Hook.) Kuntze | | a | i | Clematis villosa DC. subsp. stanleyi (Hook.) Kuntze | | 419685 | |
| Clematis kirkii Oliv. | Clematis villosa DC. subsp. kirkii (Oliv.) Brummitt | | | Clematis kirkii Oliv. | Clematis villosa DC. subsp. kirkii (Oliv.) Brummitt | 419686 | 419683 |
| Clematis terniflora DC. var. terniflora | | a | i | Clematis terniflora DC. var.terniflora | | 419688 | |
| Clematis triloba B. Heyne ex Roth | Clematis heynei M. A. Rau | | | Clematis triloba B. Heyne ex Roth | Clematis heynei M. A. Rau | 423604 | 423824 |
| Clematis heynei M. A. Rau | | a | | Clematis heynei M. A. Rau | | 423824 | |
| Clematis drummondii Torr. & A. Gray | | a | | Clematis drummondii Torr. & A. Gray | | 431588 | |
| Clematis rhodocarpa Rose | | a | | Clematis rhodocarpa Rose | | 448353 | |
| Clematis peterae Hand.-Mazz. var. peterae | | a | i | Clematis peterae Hand.-Mazz. var.peterae | | 448354 | |
| Clematis apiifolia DC. var. argentilucida (H. Lév. & Vaniot) W. T. Wang | | a | i | Clematis apiifolia DC. var.argentilucida (H. Lév. & Vaniot) W. T. Wang | | 448356 | |
| Clematis argentilucida auct. | Clematis grandidentata (Rehder & E. H. Wilson) W. T. Wang | | | Clematis argentilucida auct. | Clematis grandidentata (Rehder & E. H. Wilson) W. T. Wang | 448357 | 419674 |
| Clematis apiifolia DC. var. apiifolia | | a | i | Clematis apiifolia DC. var.apiifolia | | 448358 | |
| Clematis aethusifolia Turcz. var. aethusifolia | | a | i | Clematis aethusifolia Turcz. var.aethusifolia | | 448363 | |
| Clematis fusca Turcz. var. fusca | | a | i | Clematis fusca Turcz. var.fusca | | 448364 | |
| Clematis viorna L. | | a | | Clematis viorna L. | | 448754 | |
| Clematis columbiana (Nutt.) Torr. & A. Gray var. columbiana | | a | i | Clematis columbiana (Nutt.) Torr. & A. Gray var.columbiana | | 452116 | |
| Clematis baldwinii Torr. & A. Gray | | a | | Clematis baldwinii Torr. & A. Gray | | 456714 | |
| Clematis dioica L. | | a | | Clematis dioica L. | | 456717 | |
| Clematis guadeloupae Pers. | | a | | Clematis guadeloupae Pers. | | 456718 | |
| Clematis occidentalis (Hornem.) DC. | | a | | Clematis occidentalis (Hornem.) DC. | | 456719 | |
| Clematis columbiana (Nutt.) Torr. & A. Gray | | a | | Clematis columbiana (Nutt.) Torr. & A. Gray | | 457263 | |
| Clematis ×cartmanii Henry Taylor & Marg. Taylor | | a | | Clematis cartmanii Henry Taylor & Marg. Taylor | | 461206 | |
| Clematis ×diversifolia DC. | | a | | Clematis diversifolia DC. | | 461989 | |
| Clematis columbiana (Nutt.) Torr. & A. Gray var. tenuiloba (A. Gray) J. S. Pringle | | a | i | Clematis columbiana (Nutt.) Torr. & A. Gray var.tenuiloba (A. Gray) J. S. Pringle | | 462496 | |
| Clematis alpina (L.) Mill. subvar. tenuiloba A. Gray | Clematis columbiana (Nutt.) Torr. & A. Gray var. tenuiloba (A. Gray) J. S. Pringle | | i | Clematis alpina (L.) Mill. subvar. tenuiloba A. Gray | Clematis columbiana (Nutt.) Torr. & A. Gray var.tenuiloba (A. Gray) J. S. Pringle | 462497 | 462496 |
| Clematis alpina (L.) Mill. subsp. ochotensis (Pall.) Kuntze | | a | i | Clematis alpina (L.) Mill. subsp. ochotensis (Pall.) Kuntze | | 462498 | |
| Clematis sibirica Mill. | Clematis alpina (L.) Mill. subsp. sibirica (Mill.) Kuntze | | | Clematis sibirica Mill. | Clematis alpina (L.) Mill. subsp. sibirica (Mill.) Kuntze | 462499 | 6 |
| Clematis catesbyana Pursh | | a | | Clematis catesbyana Pursh | | 464337 | |
| Clematis courtoisii Hand.-Mazz. | | a | | Clematis courtoisii Hand.-Mazz. | | 465931 | |
| Clematis cadmia Buch.-Ham. ex Hook. f. & Thomson | | a | | Clematis cadmia Buch.-Ham. ex Hook. f. & Thomson | | 465965 | |
| Clematis tibetana Kuntze | | a | | Clematis tibetana Kuntze | | 467856 | |
| Clematis chiisanensis Nakai | Clematis koreana Kom. var. carunculosa (Gagnep.) Tamura | | | Clematis chiisanensis Nakai | Clematis koreana Kom. var.carunculosa (Gagnep.) Tamura | 476307 | 477024 |
| Clematis koreana Kom. var. carunculosa (Gagnep.) Tamura | | a | i | Clematis koreana Kom. var.carunculosa (Gagnep.) Tamura | | 477024 | |
| Clematis alpina (L.) Mill. var. carunculosa Gagnep. | Clematis koreana Kom. var. carunculosa (Gagnep.) Tamura | | i | Clematis alpina (L.) Mill. var.carunculosa Gagnep. | Clematis koreana Kom. var.carunculosa (Gagnep.) Tamura | 477025 | 477024 |
| Clematis koreana Kom. var. biternata Nakai | | a | i | Clematis koreana Kom. var.biternata Nakai | | 477026 | |
| Clematis koreana Kom. var. koreana | | a | i | Clematis koreana Kom. var.koreana | | 477027 | |
| Clematis terniflora DC. var. boninensis (Hayata) W. T. Wang | | a | i | Clematis terniflora DC. var.boninensis (Hayata) W. T. Wang | | 479751 | |
| Clematis akoensis Hayata | | a | | Clematis akoensis Hayata | | 481038 | |
| Clematis montana Buch.-Ham. ex DC. var. montana | | a | i | Clematis montana Buch.-Ham. ex DC. var.montana | | 481445 | |
| Clematis patens C. Morren & Decne. f. patens | | a | i | Clematis patens C. Morren & Decne. f. patens | | 481446 | |
| Clematis stans Siebold & Zucc. var. stans | | a | i | Clematis stans Siebold & Zucc. var.stans | | 481447 | |
| Clematis alpina (L.) Mill. var. alpina | Clematis alpina (L.) Mill. subsp. alpina | | i | Clematis alpina (L.) Mill. var.alpina | Clematis alpina (L.) Mill. subsp. alpina | 482317 | 407384 |
| Clematis alpina (L.) Mill. subvar. alpina | Clematis alpina (L.) Mill. subsp. alpina | | i | Clematis alpina (L.) Mill. subvar. alpina | Clematis alpina (L.) Mill. subsp. alpina | 482318 | 407384 |
| Clematis chrysocoma Franch. var. chrysocoma | Clematis chrysocoma Franch. | | i | Clematis chrysocoma Franch. var.chrysocoma | Clematis chrysocoma Franch. | 482319 | 19 |
| Clematis flammula L. var. flammula | Clematis flammula L. | | i | Clematis flammula L. var.flammula | Clematis flammula L. | 482320 | 36 |
| Clematis florida Thunb. f. florida | Clematis florida Thunb. | | i | Clematis florida Thunb. f. florida | Clematis florida Thunb. | 482321 | 37 |
| Clematis glauca Willd. var. glauca | Clematis orientalis L. var. daurica (Pers.) Kuntze | | i | Clematis glauca Willd. var.glauca | Clematis orientalis L. var.daurica (Pers.) Kuntze | 482322 | 407825 |
| Clematis grata Wall. var. grata | Clematis grata Wall. | | i | Clematis grata Wall. var.grata | Clematis grata Wall. | 482323 | 57 |
| Clematis heracleifolia DC. subsp. heracleifolia | Clematis heracleifolia DC. | | i | Clematis heracleifolia DC. subsp. heracleifolia | Clematis heracleifolia DC. | 482324 | 62 |
| Clematis indivisa Willd. var. indivisa | Clematis paniculata J. F. Gmel. | | i | Clematis indivisa Willd. var.indivisa | Clematis paniculata J. F. Gmel. | 482325 | 419675 |
| Clematis integrifolia L. var. integrifolia | Clematis integrifolia L. | | i | Clematis integrifolia L. var.integrifolia | Clematis integrifolia L. | 482326 | 71 |
| Clematis japonica Thunb. var. japonica | Clematis japonica Thunb. | | i | Clematis japonica Thunb. var.japonica | Clematis japonica Thunb. | 482327 | 78 |
| Clematis recta L. var. recta | Clematis recta L. | | i | Clematis recta L. var.recta | Clematis recta L. | 482328 | 108 |
| Clematis tangutica (Maxim.) Korsh. var. tangutica | Clematis tangutica (Maxim.) Korsh. subsp. tangutica | | i | Clematis tangutica (Maxim.) Korsh. var.tangutica | Clematis tangutica (Maxim.) Korsh. subsp. tangutica | 482329 | 407386 |
| Clematis ×triternata DC. f. triternata | Clematis ×triternata DC. | | i | Clematis triternata DC. f. triternata | Clematis triternata DC. | 482330 | 128 |
| Clematis tosaensis Makino f. tosaensis | | a | i | Clematis tosaensis Makino f. tosaensis | | 482331 | |
| Clematis ×vedrariensis P. Vilm. var. vedrariensis | Clematis ×vedrariensis P. Vilm. | | i | Clematis vedrariensis P. Vilm. var.vedrariensis | Clematis vedrariensis P. Vilm. | 482332 | 132 |
| Clematis vitalba L. var. vitalba | Clematis vitalba L. | | i | Clematis vitalba L. var.vitalba | Clematis vitalba L. | 482333 | 136 |
| Clematis viticella L. f. viticella | Clematis viticella L. | | i | Clematis viticella L. f. viticella | Clematis viticella L. | 482334 | 137 |
| Clematis viticella L. subsp. viticella | Clematis viticella L. | | i | Clematis viticella L. subsp. viticella | Clematis viticella L. | 482335 | 137 |
| Clematis patens C. Morren & Decne. var. tientaiensis (M. Y. Fang) W. T. Wang | | a | i | Clematis patens C. Morren & Decne. var.tientaiensis (M. Y. Fang) W. T. Wang | | 483940 | |
| Clematis patens C. Morren & Decne. subsp. tientaiensis M. Y. Fang | Clematis patens C. Morren & Decne. var. tientaiensis (M. Y. Fang) W. T. Wang | | i | Clematis patens C. Morren & Decne. subsp. tientaiensis M. Y. Fang | Clematis patens C. Morren & Decne. var.tientaiensis (M. Y. Fang) W. T. Wang | 483941 | 483940 |
| Clematis patens C. Morren & Decne. var. patens | | a | i | Clematis patens C. Morren & Decne. var.patens | | 483942 | |
| Clematis patens C. Morren & Decne. subsp. patens | Clematis patens C. Morren & Decne. var. patens | | i | Clematis patens C. Morren & Decne. subsp. patens | Clematis patens C. Morren & Decne. var.patens | 483943 | 483942 |
| Clematis addisonii Britton | | a | | Clematis addisonii Britton | | 485132 | |
| Clematis ochroleuca Aiton | | a | | Clematis ochroleuca Aiton | | 485133 | |
| Clematis versicolor Small ex Rydb. | | a | | Clematis versicolor Small ex Rydb. | | 485134 | |
| Clematis hancockiana Maxim. | | a | | Clematis hancockiana Maxim. | | 485358 | |