The International Clematis Society is indebted to Wim Snoeijer for permission to publish his Clematis Nomenclatural Standards List. Wim discussed the topic of Clematis Nomenclatural Standards in the article he wrote for Clematis International 2010, which you can find starting on page 60. It includes illustrations of a few of his herbarium sheets and the corresponding Standards entries.The list is shown below and also available as a .pdf file, to be can be viewed or downloaded from Clematis Nomenclatural Standards List. It is 11 pages in length.
The key to abbreviations at the end of both this page and also the .pdf version.
A small number of images of Clematis Nomenclatural Standards are also shown within the list below, following the relevant entry.
Clematis Nomenclatural Standards List 2012 v1.00
by Wim Snoeijer, updated 1 January 2013
Name Kind Origin Date Herbarium Clematis 'Ada Moon' HF J. van Zoest B.V. 2007, 4 October L Clematis 'Advent Bells' HF J. van Zoest B.V. 2010, 15 November L Clematis 'Agazuma-yae' PC WSY0070659 2005, 1 July WSY Clematis 'Aida' HF J. van Zoest B.V. 2007, 18 May L Clematis 'Albert' HF J. van Zoest B.V. 2006, 10 April L Clematis 'Albino Sprite' PC WSY0070717 2005, 1 July WSY Clematis 'Amelia Joan' HF WSY0096965 1996, 1 July WSY Clematis 'American Beauty' P WSY0070733 2005, 16 December WSY Clematis 'Ametistina' HF Jan Fopma 1991, 28 April L Clematis 'Andrew Van Laeken' PC WSY0101983 WSY Clematis 'Andromeda' PC WSY0096819 1999, 1 July WSY Clematis 'Angela's Double' PC WSY0096776 2002, 1 July WSY Clematis 'Anita' HF Rinus Zwijnenburg 1991, 6 July L Clematis 'Anja' HF Harry van de Laar 1990, 27 September WAG Clematis 'Anna' HF J. van Zoest B.V. 2009, 28 September L Clematis 'Annemieke' HF Jan Fopma 1991, 26 August L Clematis 'Antje' PC WSY0070682 2005, 9 November WSY Clematis 'Aoife' HF WSY0032369 2002, 28 March WSY Clematis 'Apple Blossom' PA WSY0016782 1926, 9 March WSY Clematis 'Apollonia' HF J. van Zoest B.V. 2012, 10 October L Clematis 'Apricot Star' HF WSY0096855 2002, 19 October WSY Clematis 'Atlas' PC WSY0070736 2004, 1 July WSY Clematis 'Aureolin' HF WAG0045267 1986, 24 September WAG Clematis 'Axolotl' PC WSY0070662 2004, 1 July WSY Clematis 'Bacchus' PC WSY0070715 2005, 1 July WSY Clematis 'Bal Maiden' HF WSY0100274 2007, 2 August WSY Clematis 'Ballet Skirt' HF Jan Fopma 1992, 19 April L Clematis 'Barbara Ann's Lace' PC WSY0070661 2004, 17 November WSY Clematis 'Barbara Harrington' HF WSY0043677 2003, 8 October WSY Clematis 'Barry' HF WSY0096744 2006, 3 June WSY Clematis 'Basilisk' PC WSY0070735 2005, 1 July WSY Clematis 'BCL 1239' PC WSY0100891 2007, 19 July WSY Clematis 'BCL 721' P WSY0101978 WSY Clematis 'Beata' HF Jan Fopma 1991, 10 October L Clematis 'Beautiful Meteor' PC WSY0070738 2005, 1 July WSY Clematis 'Bells of Emei Shan' HF J. van Zoest B.V. 2004, 6 October L Clematis 'Benedictus' HF Jan Fopma 1991, 22 June L Clematis 'Benedikt' HF J. van Zoest B.V. 2010, 3 August L Clematis 'Beni-no-kagayaki' PC WSY0070664 2004, 1 July WSY Clematis 'Berkeley Square' HF WSY0096968 2002, 1 July WSY Clematis 'Best Wishes' HF WSY0101101 2007, 16 October WSY Clematis 'Betina' HF Jan Fopma 1991, 11 August L Clematis 'Betty Corning' HF NA-0025375 NA Clematis 'Betty Risdon' PS WSY0108064 1992, 15 May WSY Clematis 'Bieszczady' PC WSY0096712 2006, 4 August WSY Clematis 'Bill MacKenzie' H Wageningen BG 1987, 2 June WAG Clematis 'Biriuzinka' PS WSY0100486 41616 WSY Clematis 'Blekitny Aniol' HF Jan Fopma 1991, 6 July L Clematis 'Blue Belle' PA WSY0016783 1935, 10 September WSY Clematis 'Blue Bird' HF Jan Fopma 1991, 28 April L Clematis 'Blue Chip' PC WSY0096714 2006, 1 July WSY Clematis 'Blue Eclipse' PS WSY0108062 1991, 15 May WSY Clematis 'Blue Light' HF J. van Zoest B.V. 2004, 8 May L Clematis 'Blue Meteor' PC WSY0070645 2004, 1 July WSY Clematis 'Blue Mist' P WSY0070734 2005, 16 December WSY Clematis 'Blue Planet' PC WSY0070663 2004, 12 August WSY Clematis 'Blue Princess' HF J. van Zoest B.V. 2008, 24 April L Clematis 'Blue Ravine' PS WSY0096793 1992, 1 July WSY Clematis 'Bowl of Beauty' HF Jan Fopma 1992, 6 April L Clematis 'Bravo' HF Wageningen BG 1983, 30 June WAG Clematis 'Brewster' PS WSY0096789 2001, 1 July WSY Clematis 'Bright Eyes' HF WSY0070554 2004, 1 January WSY Clematis 'Brinums' PC WSY0096970 1998, 1 July WSY Clematis 'Broughton Bride' PS WSY0108069 1997, 30 May WSY Clematis 'Broughton Star' PS WSY0108059 1993, 15 June WSY Clematis 'Brunette' HF Jan Fopma 1992, 26 April L Clematis 'Buckland Beauty' HF WSY0096217 2006, 15 August WSY Clematis 'Buckland Cascade' HF WSY0100271 2007, 3 August WSY Clematis 'Buckland Longshanks' HF WSY0096218 2006, 15 August WSY Clematis 'BUGA München 2005' PC WSY0070684 2005, 9 November WSY Clematis 'Burford' HF WAG0191956 1970, 14 September WAG Clematis 'Burford Bell' HF John Treasure 1991, October L Clematis 'C.G. Dahl' PC WSY0101979 WSY Clematis 'Cadmy' HF WSY0096998 WSY Clematis 'Capriccio' PC WSY0070648 2004, 1 July WSY Clematis 'Carmen Rose' HF Jan Fopma 1991, 13 April L Clematis 'Carol Leeds' PS WSY0070522 2004, 27 August WSY Clematis 'Carol Lim' HF WSY0070536 2003, 15 July WSY Clematis 'Cassiopeia' HF Jan Fopma 1992, 6 June L Clematis 'Centaurus' PC WSY0070666 2004, 1 July WSY Clematis 'Center Star' P WSY0101980 WSY Clematis 'Chacewater' HF WSY0100273 2007, 2 August WSY Clematis 'Chameleon' PC WSY0070665 2004, 1 July WSY Clematis 'Chameleon 2' PC WSY0070668 2004, 1 July WSY Clematis 'Chance' HF Jan Fopma 1994, 1 October L Clematis 'Chatsworth' PC WSY0100494 2006, 1 July WSY Clematis 'Chijimi' (EL) P WSY0070623 2005, 15 December WSY Clematis 'Chimera' PC WSY0070667 2004, 1 July WSY Clematis 'China Surprise' HF Ton Hannink 2012, 25 September L Clematis 'Christopher' (A) PC WSY0096826 2004, 1 July WSY Clematis 'Cicciolina' HF J. van Zoest B.V. 1997, 20 July L Clematis 'Cleminov51' HF J. van Zoest B.V. 2005, 29 September L Clematis 'Cleminov29' HF J. van Zoest B.V. 2010, 8 July L Clematis 'Clione' P WSY0070626 2005, 15 December WSY Clematis 'Cockatrice' PC WSY0070683 2005, 1 July WSY Clematis 'Cora' HF J. van Zoest B.V. 2007, 31 July L Clematis 'Cornish Spirit' PC WSY0096708 2006, 28 June WSY Clematis 'Corry' HF WAG0191957 1977, 5 October WAG Clematis 'Cragside' PC WSY0108075 1999, 1 July WSY Clematis 'Crinkle' PC WSY0108076 1997, 14 October WSY Clematis 'Curly' HF WSY0070541 2004, 17 November WSY Clematis 'Cylindrica' HF J. van Zoest B.V. 2006, 9 July L Clematis 'Daan' HF J. van Zoest B.V. 2007, 2 May L Clematis 'Daan' HF WSY0101053 duplicate WSY Clematis 'Dacite' PC WSY0108077 1998, 1 July WSY Clematis 'Dark Eyes' HF Willem Straver 2006, 1 July L Clematis 'Darling' HF WSY0070548 2004, 17 November WSY Clematis 'Darta' PC WSY0096973 2003, 1 July WSY Clematis 'Daugava' PC WSY0096971 2000, 1 July WSY Clematis 'David Hummel' HF Jan Fopma 1994, 15 October L Clematis 'De Vijfhoeven' PC WSY0096842 2000, 15 September WSY Clematis 'Debbie Fischer' PC WSY0100177 2007, 4 June WSY Clematis 'Debbie's Star' HF WSY0096856 2002, 19 October WSY Clematis 'Denim' PC WSY0070670 2004, 1 July WSY Clematis 'Denise' HF J. van Zoest B.V. 2004, 8 May L Clematis 'Denny's Double' PS WSY0108063 1995, 15 May WSY Clematis 'Destiny' HF J. van Zoest B.V. 2007, 31 July L Clematis 'Dimples' PC WSY0070647 2004, 1 July WSY Clematis 'Dionysus' PC WSY0070716 2005, 1 July WSY Clematis 'Dirk Chevalier' HF WSY0070533 2003, 21 August WSY Clematis 'Doctor Penelope' HF WSY0096853 2001, 1 July WSY Clematis 'Dominika' PS WSY0096829 1999, 1 July WSY Clematis 'Dorothy Barbara' HF WSY0100831 WSY Clematis 'Dorothy Tolver' HF J. van Zoest B.V. 2007, 24 July L Clematis 'Double Delight' HF WSY0070544 2004, 15 April WSY Clematis 'Dovedale' HF Everett Leeds 2007, 29 April L Clematis 'Dovedale' HF WSY0112345 duplicate WSY Clematis 'Dr F.L. Skinner' HF Jan Fopma 1991, 20 April L Clematis 'Dr Mary' HF Ton Hannink 2011, 16 August L Clematis 'Dunajéc' PS WSY0096972 1999, 1 July WSY Clematis 'Dundaga' PC WSY0096974 2003, 1 July WSY Clematis 'Dusky' PC WSY0070439 2005, 3 September WSY Clematis 'Dusky Star' HF WSY0096817 2000, 1 July WSY Clematis 'Duchess of Waverly' HF J. van Zoest B.V. 2012, 20 June Clematis 'East Malling' HF Jan Fopma 1995, 7 June L Clematis 'El Pinko' PC WSY0096975 1999, 24 October WSY Clematis 'Eleanor' HF J. van Zoest B.V. 2004, 9 April L Clematis 'Elf' HF J. van Zoest B.V. 2007, 12 July L Clematis 'Elly Elisabeth' HF J. van Zoest B.V. 2008, 22 August L Clematis 'Esperanto' HF J. van Zoest B.V. 2009, 9 October L Clematis 'Esprit' PS WSY0100417 2007, 1 July WSY Clematis 'Etta' PC WSY0096717 2006, 30 December WSY Clematis 'Eva Barster' HF J. van Zoest B.V. 2004, 8 May L Clematis 'Evifive' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Evifour' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Evione' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Evipo002' HF WSY0050766 2003, 22 July WSY Clematis 'Evipo004' HF WSY0103965 2004, 28 April WSY Clematis 'Evipo006' HF J. van Zoest B.V. 2011, 2 November L Clematis 'Evipo009' HF WSY0051768 2004, 3 June WSY Clematis 'Evipo012' HF Mike Brown 2009, 18 July L Clematis 'Evipo013' HF Mike Brown 2009, 18 July L Clematis 'Evipo014' HF Mike Brown 2009, 18 July L Clematis 'Evipo015' HF Mike Brown 2009, 18 July L Clematis 'Evirin' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Evisix' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Evithree' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Fairy' PS WSY0004488 1989, 12 April WSY Clematis 'Fairydust' HF J. van Zoest B.V. 2009, 9 October L Clematis 'Fascination' HF J. van Zoest B.V. 2002, 26 August L Clematis 'Fay' HF J. van Zoest B.V. 2007, 4 October L Clematis 'Felicity' HF Willem Straver 2006, 28 June L Clematis 'Finn' PC WSY0096820 2004, 1 July WSY Clematis 'Fiona' PC WSY0070529 2004, 27 January WSY Clematis 'Fire of Marlene' P WSY0070730 2005, 30 June WSY Clematis 'Flip' HF J. van Zoest B.V. 2008, 22 August L Clematis 'Florentine' HF J. van Zoest B.V. 2009, 8 May L Clematis 'Floris V' HF J. van Zoest B.V. 2002, 26 August L Clematis 'Flutter' HF WSY0070539 2004, 1 January WSY Clematis 'Fond Memories' PC WSY0096846 2003, 1 July WSY Clematis 'Freckles' HF WSY0004485 1989, 28 November WSY Clematis 'Freda' HF Experimental Station Boskoop 1989, 9 May WAG Clematis 'Frilly Pants' HF WSY0096810 41456 WSY Clematis 'Gemini' HF WSY0004475 1990, 1 July WSY Clematis 'Geoffrey Tolver' PS WSY0070525 2005, 11 September WSY Clematis 'Gisela' PC WSY0070669 2004, 12 August WSY Clematis 'Gistar' PC WSY0108078 1998, 19 October WSY Clematis 'Giuseppi Verde' P WSY0070440 2005, 3 September WSY Clematis 'Glasnevin Dusk' HF WSY0096860 2003, 22 August WSY Clematis 'Gojogawa' P WSY0070625 2005, 15 December WSY Clematis 'Grace' HF Jan Fopma 1991, 14 July L Clematis 'Gratia' HF J. van Zoest B.V. 2008, 24 September L Clematis 'Gravetye Beauty' PA WSY0016785 1935, 10 September WSY Clematis 'Green Eyes' P WSY0070628 2005, 15 December WSY Clematis 'Gunta' PC WSY0108079 1998, 1 July WSY Clematis 'Gwendolin' PC WSY0070672 2004, 12 August WSY Clematis 'Hainton Ruby' HF Jan Fopma 1992, 6 June L Clematis 'Hanneke' HF J. van Zoest B.V. 2008, 24 May L Clematis 'Harry Smith' HF Jan Fopma 1994, 11 September L Clematis 'Haru-no-yume' P WSY0070630 2005, 15 December WSY Clematis 'Hayate' HF J. van Zoest B.V. 2008, 11 June L Clematis 'Helen Cropper' PS WSY0108060 1995, 15 May WSY Clematis 'Helma' HF J. van Zoest B.V. 2008, 9 May L Clematis 'Henderson Rubra' HF NA-0025376 NA Clematis 'Hendryetta' HF J. van Zoest B.V. 2002, 26 August L Clematis 'Hornessy' PC WSY0096721 2006, 10 July WSY Clematis 'Hornet' PC WSY0070678 2004, 1 July WSY Clematis 'Hoshi-no-flamenco' HF J. van Zoest B.V. 2009, 7 October L Clematis 'Hot Lips' PC WSY0100483 2007, 23 October WSY Clematis 'Hypnos' PC WSY0070713 2005, 1 July WSY Clematis 'Ibi' HF J. van Zoest B.V. 2007, 17 October L Clematis 'Ice Queen' P WSY0070438 2005, 26 May WSY Clematis 'Inge Augsburg' HF J. van Zoest B.V. 2008, 22 August L Clematis 'Ingrid Biedenkopf' HF J. van Zoest B.V. 2008, 4 August L Clematis 'Innocence' HF WSY0070546 2004, 17 November WSY Clematis 'Irene' P WSY0101984 WSY Clematis 'Irisevi' PC WSY0100201 2007, 9 May WSY Clematis 'Iubileinyi-70' PS WSY0100492 1997, 8 December WSY Clematis 'Jacqueline du Pré' HF WSY0004482 1984, 21 May WSY Clematis 'Jan Fopma' HF J. van Zoest B.V. 2005, 11 July L Clematis 'Jan Fopma' HF WSY0112059 duplicate WSY Clematis 'Jan Pawel II' HF Jan Fopma 1990, 20 October L Clematis 'Jana von der Birke' PC WSY0096723 2006, 30 December WSY Clematis 'Janny' HF J. van Zoest B.V. 2004, 28 April L Clematis 'Janus' PC WSY0070671 2004, 1 July WSY Clematis 'Jasper' HF Rinus Zwijnenburg 1991, 7 September L Clematis 'Jerzy Popieluszko' PS WSY0096837 2000, 8 June WSY Clematis 'Jessica' HF J. van Zoest B.V. 2006, 2 May L Clematis 'Jiska' HF J. van Zoest B.V. 2009, 8 May L Clematis 'Joan Baker' HF J. van Zoest B.V. 2009, 18 July L Clematis 'Joe' PS WSY0004487 1986, 9 May WSY Clematis 'John Treasure' HF J. van Zoest B.V. 2008, 11 June L Clematis 'Josie's Midnight Blue' P WSY0070441 2005, 3 September WSY Clematis 'Joyful Star' HF WSY0096854 41566 WSY Clematis 'Jurry' PC WSY0100190 2007, 4 June WSY Clematis 'Kahori no kimi' P WSY0112013 WSY Clematis 'Kaori' P WSY0070627 2005, 1 July WSY Clematis 'Kardynal Wyszynski' HF Jan Fopma 1991, 14 July L Clematis 'Karina' PC WSY0096825 2004, 1 July WSY Clematis 'Karoline Kozka' HF Jan Fopma 1991, 6 July L Clematis 'Kasumi no kimi' P WSY0112014 WSY Clematis 'Katharina' HF J. van Zoest B.V. 2006, 11 May L Clematis 'Kathryn Chapman' PC WSY0100491 2004, 15 July WSY Clematis 'Kaupo' PC WSY0096976 2003, 1 July WSY Clematis 'Keguri' PC WSY0070674 2004, 1 July WSY Clematis 'Keith Richardson' HF J. van Zoest B.V. 2008, 30 May L Clematis 'Kerstin Thümmler' PC WSY0096738 2006, 30 December WSY Clematis 'Killifreth' HF WSY0100272 2007, 2 August WSY Clematis 'Korean Beauty' HF J. van Zoest B.V. 2009, 8 September L Clematis 'Korean Moon' HF J. van Zoest B.V. 2006, 8 May L Clematis 'Krista' HF J. van Zoest B.V. 2009, 8 May L Clematis 'Kristina Böttger' PC WSY0096724 2006, 30 December WSY Clematis 'Kugotia' HF Kuif 1995, 26 September L Clematis 'Lansdowne Gem' PC WSY0096823 1997, 1 July WSY Clematis 'Laura Denny' PS WSY0108066 1995, 15 May WSY Clematis 'Lech Walesa' PS WSY0096830 41456 WSY Clematis 'Lemon Chiffon' HF Denis Bradshaw 1992, 18 May L Clematis 'Lidia' PS WSY0096977 1999, 1 July WSY Clematis 'Lilactime' HF WSY0004484 1990, 24 April WSY Clematis 'Lime Close' HF J. van Zoest B.V. 2009, 23 June L Clematis 'Little Bas' HF J. van Zoest B.V. 1996, July L Clematis 'Little Butterfly' HF WSY0112347 duplicate L Clematis 'Little Butterfly' HF J. van Zoest B.V. 2007, 13 July L Clematis 'Little Guy' HF WSY0096979 2000, 1 July WSY Clematis 'Little Pinkie' HF WSY0070552 2004, 17 November WSY Clematis 'Little White Charm' HF J. van Zoest B.V. 2008, 17 March L Clematis 'Little White Charm' HF WSY0112348 duplicate L Clematis 'Livzeme' PC WSY0096985 2003, 1 July WSY Clematis 'Lorcan O'Brien' HF WSY0096863 2003, 4 September WSY Clematis 'Lord Herschell' HF Mike Brown 2009, 18 July L Clematis 'Lorna's Star' HF WSY0070550 2004, 28 November WSY Clematis 'Lossnitzperle' PC WSY0070679 2004, 12 August WSY Clematis 'Louise Pummell' HF WSY0100222 2007, 24 February WSY Clematis 'Lynne' P WSY0070686 2005, 30 December WSY Clematis 'Madame Kayo' PC WSY0096753 2006, 27 July WSY Clematis 'Madame Michiko' PC WSY0070711 2005, 1 July WSY Clematis 'Magga' PC WSY0096726 2006, 30 December WSY Clematis 'Magic Star' HF WSY0096994 1996, 1 July WSY Clematis 'Maidwell Hall' HF WSY0033588 2002, 23 April WSY Clematis 'Maija' PC WSY0096984 2003, 1 July WSY Clematis 'Majojo' HF J. van Zoest B.V. 2004, 9 April L Clematis 'Margaret Hunt' HF Jan Fopma 1991, 14 July L Clematis 'Maria' HF Jan Fopma 1991, 20 April L Clematis 'Maria Cornelia' HF J. van Zoest B.V. 2005, 10 November L Clematis 'Marinka' HF Rinus Zwijnenburg 1991, 7 September L Clematis 'Marjan' PC WSY0100211 2007, 9 May WSY Clematis 'Marjorie' HF Experimental Station Boskoop 1989, 8 June WAG Clematis 'Mayleen' HF Experimental Station Boskoop 1989, 9 May WAG Clematis 'Mazowsze' PC WSY0096727 2006, 4 August WSY Clematis 'Mazury' PC WSY0096734 2006, 4 August WSY Clematis 'Mejiro' PC WSY0070712 2005, 1 July WSY Clematis 'Mellissa' HF J. van Zoest B.V. 2006, 10 April L Clematis 'Merlin's Magic' HF WSY0100863 2008, 7 January WSY Clematis 'Michelle' HF Mike Brown 2009, 18 July L Clematis 'Mongolian Gold' HF J. van Zoest B.V. 2009, 28 September L Clematis 'Monique' P WSY0070724 2004, 6 June WSY Clematis 'Monty Zary' HF WSY0096768 1997, 1 July WSY Clematis 'Mood Indigo' PC WSY0070530 2004, 27 January WSY Clematis 'Moon Drops' P WSY0070629 2005, 15 December WSY Clematis 'Moonbeam' HF WSY0096948 1996, 1 July WSY Clematis 'Moonshadow' PC WSY0100481 2004, 14 May WSY Clematis 'Morning Yellow' 2000, 1 July WSY Clematis 'Mr Vanunu' PC WSY0096989 2000, 1 July WSY Clematis 'Mrs Robert Brydon' HF L0538615 1940, 30 August L Clematis 'Murasaki no ue' P WSY0112015 WSY Clematis 'My Angel' HF J. van Zoest B.V. 2009, 8 September L Clematis 'My Super Star' HF J. van Zoest B.V. 2008, 22 August L Clematis 'New Love' HF Jan Fopma 1996, 29 September L Clematis 'New Prince' PC WSY0096736 2006, 21 October WSY Clematis 'Night Veil' P WSY0070632 2005, 15 December WSY Clematis 'Nina Banham' PC WSY0100545 2004, 3 October WSY Clematis 'Nirwana' HF J. van Zoest B.V. 2008, 22 August L Clematis 'Ocean Pearl' HF J. van Zoest B.V. 2008, 24 April L Clematis 'Ola Howells' HF John Howells 1997, 30 April L Clematis 'Orange Peel' HF WAG0191959 1967, 12 October WAG Clematis 'Overture' PC WSY0070673 2004, 1 July WSY Clematis 'Pale Princess' P WSY0070681 2005, 15 December WSY Clematis 'Pamina' PS WSY0070531 2004, 27 January WSY Clematis 'Pamjatj Serdtza' HF J. van Zoest B.V. 2007, 24 July L Clematis 'Paris Collection' P WSY0070631 2005, 15 December WSY Clematis 'Pat Coleman' PC WSY0096845 1996, 1 July WSY Clematis 'Pearl of Richmond' HF WSY0070560 2004, 1 January WSY Clematis 'Pegasus' PC WSY0070676 2004, 1 July WSY Clematis 'Perida' PC WSY0100493 2005, 30 November WSY Clematis 'Perseus' PC WSY0070710 2005, 1 July WSY Clematis 'Picasso' HF J. van Zoest B.V. 2008, 20 May L Clematis 'Pink Cameo' PS WSY0096796 1999, 1 July WSY Clematis 'Pink Delight' HF J. van Zoest B.V. 2002, 26 August L Clematis 'Pink Ice' HF Mike Brown 2009, 18 July L Clematis 'Pink Minnie' HF WSY0097000 1996, 1 July WSY Clematis 'Pink Pride' P WSY0070729 2005, 21 December WSY Clematis 'Pink Rave' HF WSY0100003 2002, 1 July WSY Clematis 'Pink Star' PC WSY0070709 2005, 1 July WSY Clematis 'Pink Starlight' HF WSY0096816 2000, 1 July WSY Clematis 'Piotr Skarga' PS WSY0096981 1999, 1 July WSY Clematis 'Poldice' PC WSY0096709 2006, 28 June WSY Clematis 'Polonez' PS WSY0096840 2002, 3 October WSY Clematis 'Poulala' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Pourpre Mat' PA WSY0016774 1935, 10 September WSY Clematis 'Prairie River' HF NA-0025378 NA Clematis 'Prelude' PC WSY0070644 2004, 1 July WSY Clematis 'Primrose Star' HF WSY0096806 1996, 1 July WSY Clematis 'Prosperity' HF J. van Zoest B.V. 2009, 2 June L Clematis 'Purple Haze' HF J. van Zoest B.V. 2010, 6 July L Clematis 'Purple Princess' HF Ruud van der Werf 2011, 4 September L Clematis 'Purple Shadow' HF J. van Zoest B.V. 2009, 28 September L Clematis 'Purple Spider' HF Jan Fopma 1992, 26 April L Clematis 'Purpureostriata' HF J. van Zoest B.V. 2006, 19 July L Clematis 'Queen of Holland' HF J. van Zoest B.V. 2005, 11 July L Clematis 'Queen of Holland' HF WSY0112057 duplicate WSY Clematis 'Rasputin' PC WSY0100496 2005, 30 November WSY Clematis 'Red Queen' PC WSY0070675 2004, 1 July WSY Clematis 'Rendevous' HF J. van Zoest B.V. 2008, 22 August L Clematis 'Reverie' P WSY0070727 2005, 31 December WSY Clematis 'Riviera' P WSY0070690 2005, 16 December WSY Clematis 'Rob Hannink' PC WSY0100196 2007, 4 June WSY Clematis 'Rosamunde' HF Willem Straver 2006, 1 July L Clematis 'Rosebell' PC WSY0070657 2005, 16 December WSY Clematis 'Rosebud' PC WSY0108081 1998, 19 October WSY Clematis 'Rosy O'Grady' HF Jan Fopma 1992, 19 April L Clematis 'Roundway Blue Bird' HF WSY0026821 2000, 12 September WSY Clematis 'Rozalia' PC WSY0096986 1999, 1 July WSY Clematis 'Rusty Swords' P WSY0070633 2005, 15 December WSY Clematis 'Sakurafubuki' P WSY0070636 2005, 15 December WSY Clematis 'Salamander' PC WSY0070652 2004, 1 July WSY Clematis 'Saliut Pobedy' PS WSY0100488 2000, 9 November WSY Clematis 'Samantha Denny' PS WSY0108068 1991, 15 September WSY Clematis 'Sander' HF J. van Zoest B.V. 2007, 24 July L Clematis 'Sandra Denny' PS WSY0108067 2000, 4 July WSY Clematis 'Sanssouci' HF J. van Zoest B.V. 2012, 29 April L Clematis 'Scarlet Yoki' PC WSY0070739 2005, 1 July WSY Clematis 'Schneeglanz' HF Pieter Zwijnenburg 1993, 24 September L Clematis 'Seserage' P WSY0070635 2005, 15 December WSY Clematis 'Shangri-la' PC WSY0070660 2004, 1 July WSY Clematis 'Sherriffii' HF Jan Fopma 1991, 28 September L Clematis 'Shiguri' PC WSY0070655 2004, 1 July WSY Clematis 'Shinku-no-kagayaki' PC WSY0070658 2004, 1 July WSY Clematis 'Shirley Star' HF WSY0096858 2002, 17 October WSY Clematis 'Shizuka-TH' HF J. van Zoest B.V. 2008, 3 June L Clematis 'Shorty' HF J. van Zoest B.V. 2007, 9 October L Clematis 'Sidrabdancis' PC WSY0096821 2003, 1 July WSY Clematis 'Silhouette' P WSY0070638 2005, 15 December WSY Clematis 'Silvanus' PC WSY0070707 2005, 1 July WSY Clematis 'Sir Eric Savill' HF Denis Bradshaw 1997, 30 April L Clematis 'Siren' P WSY0070637 2005, 15 December WSY Clematis 'Sirius' HF WSY0070558 2003, 5 November WSY Clematis 'Slowianka' PC WSY0096809 2002, 1 July WSY Clematis 'Small Boy' PC WSY0070703 2005, 1 July WSY Clematis 'Small Purple' HF J. van Zoest B.V. 2008, 11 June L Clematis 'Snowbird' HF WSY0004483 1984, 21 May WSY Clematis 'Snow Bells' HF J. van Zoest B.V. 2012, 28 February L Clematis 'Soirée' P WSY0070640 2005, 15 December WSY Clematis 'Solidarnosc' PS WSY0096835 2003, 1 July WSY Clematis 'Sophie' HF WSY0096766 2004, 15 October WSY Clematis 'Spectrum' HF Jan Fopma 1992, 5 May L Clematis 'Stanislaus' HF J. van Zoest B.V. 2004, 5 August L Clematis 'Starlet' HF WSY0096811 2002, 17 October WSY Clematis 'Starlight' HF WSY0100005 1996, 1 July WSY Clematis 'Stephanie' HF J. van Zoest B.V. 2006, 20 April L Clematis 'Stolwijk Gold' HF J. van Zoest B.V. 2009, 4 June L Clematis 'Sunny Side' P WSY0070639 2005, 15 December WSY Clematis 'Sunrise' HF WSY0096850 1996, 1 July WSY Clematis 'Suzanne' P WSY0070687 2005, 16 December WSY Clematis 'Suzy Mac' P WSY0070528 2004, 9 May WSY Clematis 'Sweetheart' HF Marco de Wit 2011, 29 August L Clematis 'Swedish Bells' HF WSY0070741 2004, 28 August WSY Clematis 'Sweet Mystery' HF WSY0096804 2002,1 July WSY Clematis 'Sweet Summer Love' HF J. van Zoest B.V. 2012, 10 October L Clematis 'Symphony' PC WSY0070656 2004, 1 July WSY Clematis 'Tetrarose' HF Experimental Station Boskoop 1986, 29 May WAG Clematis 'The Blue Cross' PC WSY0100500 2007, 10 September WSY Clematis 'Thorncroft' PC WSY0070562 2004, 27 January WSY Clematis 'Tibetan Gem' HF J. van Zoest B.V. 2007, 9 October L Clematis 'Tibetan Gem' HF WSY0112349 duplicate WSY Clematis 'Tibetan Mix' HF Jan Fopma 1996, 11 October L Clematis 'Tie Dye' P WSY0070731 2005, 16 December WSY Clematis 'Tina' HF J. van Zoest B.V. 2004, 8 May L Clematis 'Titipu' P WSY0070442 2005, 3 September WSY Clematis 'Together' PC WSY0100502 2007, 10 September WSY Clematis 'Treasure Trove' HF J. van Zoest B.V. 1996, 29 September L Clematis 'Trimda' PC WSY0108084 1999, 1 July WSY Clematis 'Tsunami Child' HF WSY0096741 2006, 3 June WSY Clematis 'Tudor' HF J. van Zoest B.V. 2008, 22 August L Clematis 'Turaida' PC WSY0096983 2003, 1 July WSY Clematis 'Ukigumo' P WSY0070642 2005, 15 December WSY Clematis 'Unicorn' PC WSY0070653 2004, 1 July WSY Clematis 'Unicorn 2' PC WSY0070654 2004, 1 July WSY Clematis 'Urania' PC WSY0070721 2005, 1 July WSY Clematis 'Van Gogh' HF J. van Zoest B.V. 2008, 9 May L Clematis 'Vanessa' PS WSY0108065 2000, 1 July WSY Clematis 'Vanilla Cream' HF WSY0096859 1996, 1 July WSY Clematis 'Varenne' PC WSY0100498 2007, 15 January WSY Clematis 'Vasara' PC WSY0096987 2000, 1 July WSY Clematis 'Vince Denny' PS WSY0096889 2003, 1 July WSY Clematis 'Vino' HF Guernsey Clematis Ltd. 1997, 26 April L Clematis 'Vitiwester' HF Ton Hannink 2010, 15 June L Clematis 'Vivienne Lawson' PS WSY0108061 1995, 15 May WSY Clematis 'Vostok' HF J. van Zoest B.V. 2007, 24 July L Clematis 'Wallsal' H Wageningen BG 1987, 2 June WAG Clematis 'Warszawska Nike' HF Jan Fopma 1991, 14 July L Clematis 'Warszawska Olga' P WSY0070532 2005, 23 December WSY Clematis 'Wee Willie Winkie' HF WSY0096857 2002, 1 July WSY Clematis 'WER01' HF Ruud van der Werf 2009, 19 October L Clematis 'Whirligig' HF WSY0070880 2005, 19 May WSY Clematis 'White Cascade' PC WSY0096828 2000, 1 July WSY Clematis 'White Crinkle' HF WSY0070556 2004, 1 January WSY Clematis 'White Dream' PC WSY0070680 2004, 12 August WSY Clematis 'White Prince Charles' HF J. van Zoest B.V. 2011, 16 August L Clematis 'White Rosebud' HF WSY0096805 2002, 1 July WSY Clematis 'White Swan' HF J. van Zoest B.V. 2010, 13 April L Clematis 'White Twist' HF J. van Zoest B.V. 2006, 31 July L Clematis 'White Twist' HF WSY0112061 duplicate WSY Clematis 'Whoopi' HF J. van Zoest B.V. 2007, 31 July L Clematis 'Wildfire' PC WSY0100887 2008, 14 January WSY Clematis 'Winter Beauty' HF J. van Zoest B.V. 2006, 1 March L Clematis 'Wolfie' P WSY0070526 2004, 28 April WSY Clematis 'Wyvern' PC WSY0070651 2004, 1 July WSY Clematis 'Yellow Starlight' HF WSY0070543 2004, 17 November WSY Clematis 'Yoimatsuri' P WSY0070641 2005, 15 December WSY Clematis 'Y's Pearl' PC WSY0070719 2005, 1 July WSY Clematis 'Yugao' P WSY0112016 WSY Clematis 'Yugiri' P WSY0112017 WSY Clematis 'Yuki-no-yosooi' HF J. van Zoest B.V. 2009, 9 October L Clematis 'Zilaiskalns' PC WSY0096982 2003, 1 July WSY Clematis 'Zoang' HF J. van Zoest B.V. 2010, 1 June L Clematis 'Zobadol' HF J. van Zoest B.V. 2011, 5 December L Clematis 'Zobast' HF J. van Zoest B.V. 2011, 5 December L Clematis 'Zobluepi' HF J. van Zoest B.V. 2005, 29 August L Clematis 'Zoblueriver' HF J. van Zoest B.V. 2006, 27 September L Clematis 'Zocoro' HF J. van Zoest B.V. 2010, 13 April L Clematis 'Zodado' HF J. van Zoest B.V. 2008, 23 October L Clematis 'Zodaki' HF J. van Zoest B.V. 2006, 27 September L Clematis 'Zodaque' HF J. van Zoest B.V. 2005, 8 September L Clematis 'Zodasmi' HF J. van Zoest B.V. 2010, 25 June L Clematis 'Zoeastri' HF J. van Zoest B.V. 2006, 27 September L Clematis 'Zoexci' HF J. van Zoest B.V. 2012, 30 July L Clematis 'Zofofri' HF J. van Zoest B.V. 2008, 7 October L Clematis 'Zohapbi' HF J. van Zoest B.V. 2008, 11 June L Clematis 'Zoiamha' HF J. van Zoest B.V. 2009, 24 June L Clematis 'Zoiamladyq' HF J. van Zoest B.V. 2007, 15 August L Clematis 'Zoiamlj' HF J. van Zoest B.V. 2009, 6 July L Clematis 'Zoin' HF J. van Zoest B.V. 2005, 12 September L Clematis 'Zoin' HF WSY0112055 duplicate WSY Clematis 'Zojapur' HF J. van Zoest B.V. 2005, 29 September L Clematis 'Zojogo' HF J. van Zoest B.V. 2006, 27 September L Clematis 'Zojogo' HF WSY0112051 duplicate WSY Clematis 'Zojohnhowells' HF J. van Zoest B.V. 2008, 7 October L Clematis 'Zoklako' HF J. van Zoest B.V. 2005, 8 September L Clematis 'Zolibe' HF J. van Zoest B.V. 2002, 26 August L Clematis 'Zomibel' HF J. van Zoest B.V. 2005, 29 September L Clematis 'Zomibel' HF WSY0112058 duplicate WSY Clematis 'Zomisri' HF J. van Zoest B.V. 2012, 30 July L Clematis 'Zomoa' HF J. van Zoest B.V. 2011, 5 December L Clematis 'Zomy' HF J. van Zoest B.V. 2004, 5 November L Clematis 'Zooct' HF J. van Zoest B.V. 2006, 10 April L Clematis 'Zopre' HF J. van Zoest B.V. 2002, 9 July L Clematis 'Zorero' HF J. van Zoest B.V. 2005, 11 July L Clematis 'Zosor' HF J. van Zoest B.V. 2010, 13 April L Clematis 'Zospi' HF J. van Zoest B.V. 2010, 13 April L Clematis 'Zostarri' HF J. van Zoest B.V. 2008, 1 October L Clematis 'Zostiwa' HF J. van Zoest B.V. 2005, 8 September L Clematis 'Zosumdre' HF J. van Zoest B.V. 2005, 29 September L Clematis 'Zosusk' HF J. van Zoest B.V. 2009, 23 June L Clematis 'Zotemp' HF J. van Zoest B.V. 2007, 11 July L Clematis 'Zotrym' HF J. van Zoest B.V. 2012, 7 May L Clematis 'Zotwi' HF J. van Zoest B.V. 2009, 22 July L
Abbreviations, Kind H Herbarium HF Flowering Herbarium Specimen P Photograph PA Painting PC Colour Photograph PS Photographic Transparency
Abbreviations, Herbarium L Nationaal Herbarium Nederland Leiden University Branch, The Netherlands. NA US National Arboretum, Washington, DC, United States of America. WAG Nationaal Herbarium Nederland Wageningen University Branch, The Netherlands. WYS Herbarium Royal Horticultural Society Wisley, United Kingdom.
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