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ORGHPS's Germination Guide
Plant Name Full
Viable Germ
Abelmoschus manihot K
Abies koreana 'Silberlocke' J 7
Abronia nana A 6 7
Acacia podalyriifolia A 6 7
Acacia species A 6 7
Acacia williamsonii A 6 7 *
Acaena adscendens A
Acaena buchananii E
Acaena caesiglauca E
Acaena glaucophylla K *
Acaena hieronymi A
Acaena magellanica E
Acaena microphylla E
Acaena microphylla 'Kupferteppich' E
Acaena myriophylla A
Acaena novae-zelandiae E
Acaena pinnatifida E
Acaena saccaticupula E 2 7
Acaena saccaticupula 'Blue Haze' E 2 7
Acaena sericea A
Acaena williamsonii E
Acantholimon all species B *
Acantholimon araxanum A *
Acantholimon armenum A *
Acantholimon avenaceum A
Acantholimon bracteatum A *
Acantholimon bracteatum var. capitatum A *
Acantholimon caryophyllaceum A *
Acantholimon compactum ! B *
Acantholimon glumaceum A *
Acantholimon hohenackeri ! B *
Acantholimon karelinii A *
Acantholimon litvinovii L
Acantholimon reflexifolium A *
Acantholimon saxifragiforme A *
Acantholimon sp. ! B *
Acantholimon ulicinum ! ? *
Acanthopanax sessiliflorus *
Acanthopanax sessiliflorus var. parviceps *
Acanthus hungaricus E 7
Acanthus mollis F 7
Acanthus mollis Latifolius Group F 7
Acanthus spinosus F 7
Acer amurensis H 7
Acer argutum L 7
Acer barbinerve G
Acer cappadocicum ssp. divergens J
Acer carpinifolium H 7
Acer caudatum ! G 7
Acer caudatum subsp. ukurunduense ! G 7
Acer davidii L
Acer ginnala G 7
Acer glabrum H 7
Acer glabrum var. douglasii H 7
Acer griseum G 6 7 *
Acer grosseri var. hersii G
Acer japonicum G *
Acer japonicum 'Aconitifolium' L
Acer japonicum f. 'Aconitifolium' L
Acer japonicum var. dissectum G *
Acer mandshuricum G 3 6 7 *
Acer palmatum G
Acer palmatum 'Dissectum' G
Acer palmatum 'Dissectum Viridis' G
Acer palmatum 'Emperor I' G
Acer palmatum 'Koto Ito' G
Acer palmatum 'Linearilobum' G
Acer palmatum 'Osakazuki' G
Acer palmatum 'Red Pygmy' G
Acer palmatum 'Shigi-tatsu-sawa' G
Acer palmatum 'Yasemin' G 7
Acer palmatum f. scolopendrifolium G 7
Acer palmatum var. dissectum (Dissectum Atropurpureum Group) G
Acer pensylvanicum L *
Acer pictum subsp. mono ! G 7
Acer pseudosieboldianum A 3 *
Acer saccharum subsp. nigrum G 7
Acer sieboldianum ! L *
Acer spicatum ! L 7
Acer tataricum 'Hot Wings' L 7
Acer tataricum subsp. ginnala L 7
Acer tegmentosum F *
Acer tetramerum ! L *
Acer triflorum D 7
Acer truncatum G 7
Acer tschonoskii subsp. koreanum ! G 7
Acer ukurunduense L 7
Achillea ageratifolia B 3
Achillea ageratifolia spp. aizoon B 3
Achillea ageratum A 3 *
Achillea alpina A
Achillea Anthea' A 3
Achillea asiatica B 3
Achillea biserrata A
Achillea clavennae K
Achillea clavennae var. intercedens K
Achillea filipendulina A 3
Achillea filipendulina 'Gold Plate' A 3
Achillea grandiflora A 3
Achillea holosericea A
Achillea huteri A
Achillea macrophylla A 3 4
Achillea millefolium A 3
Achillea millefolium 'Cassis' A
Achillea Moonshine' A 3
Achillea Moonwalker' A 3 *
Achillea nana B
Achillea nobilis subsp. neilreichii A 3
Achillea ptarmica A 3
Achillea ptarmica subsp. pyrenaica A 3
Achillea ptarmicifolia A 3
Achillea pyrenaica A 3
Achillea Schwellenburg' A 3
Achillea sibirica A 3
Achillea sibirica 'Stephanie Cohen' A 3
Achillea sibirica subsp. camtschatica A 3
Achillea sp. ?
Achillea Summer Pastels Group A 3
Achillea tomentosa A
Achillea tomentosa 'Aurea' A
Achillea umbellata A 1
Achillea x kellereri B 3
Achillea x lewisii 'King Edward' A 3
Achlys japonica L
Achnatherum calamagrostis A
Achnatherum extremiorientale A
Acidanthera bicolor K
Acidanthera sp. ?
Acinos alpinus A 3
Acis autumnalis A
Acis nicaeensis A
Acmella oleracea A
Aconitum alboviolaceum ! 4 *
Aconitum all species ! *
Aconitum altaicum ! K 3 *
Aconitum anthora ! *
Aconitum baicalense ! *
Aconitum bakeri ! *
Aconitum barbatum ! *
Aconitum barbatum ! *
Aconitum Bressingham Spire' ! *
Aconitum carmichaelii ! J *
Aconitum carmichaelii 'Arendsii' (Arendsii Group) ! J *
Aconitum columbianum ! *
Aconitum cymbulatum ! 4 *
Aconitum czekanovskyi ! *
Aconitum excelsum ! *
Aconitum ferox ! D *
Aconitum firmum ! *
Aconitum fischeri ! *
Aconitum gmelinii ! *
Aconitum hemsleyanum ! *
Aconitum hemsleyanum 'Red Wine' ! *
Aconitum heterophyllum ! J 2 4 7 *
Aconitum Ivorine' ! *
Aconitum jaluense ! *
Aconitum japonicum ! L *
Aconitum japonicum ! *
Aconitum kirinense ! *
Aconitum kitadakense ! *
Aconitum krylovii ! 4 *
Aconitum kusnezoffii ! 4 *
Aconitum lamarckii ! *
Aconitum lasiostomum ! *
Aconitum lycoctonum ! *
Aconitum lycoctonum ssp moldavicum ! *
Aconitum lycoctonum subsp. lycoctonum ! *
Aconitum lycoctonum subsp. neapolitanum ! *
Aconitum lycoctonum subsp. vulparia ! *
Aconitum moldavicum ! L *
Aconitum napellus ! *
Aconitum napellus 'Album' ! *
Aconitum napellus 'Schneewittchen' ! *
Aconitum napellus ssp grignae ! *
Aconitum nemorum ! *
Aconitum orientale ! L 4 *
Aconitum sachalinense ! J *
Aconitum sachalinense subsp. yezoense ! J *
Aconitum septentrionale ! *
Aconitum sinomontanum ! H *
Aconitum sp. ! *
Aconitum Stainless Steel' ! *
Aconitum tauricum ! *
Aconitum uncinatum ! *
Aconitum variegatum ! E *
Aconitum volubile ! J *
Aconitum vulparia ! *
Aconitum x cammarum 'Pink Sensation' ! *
Acorus calamus *
Actaea alba ! E 8 *
Actaea alba f. rubrocarpa ! E 8 *
Actaea all species *
Actaea americana E
Actaea asiatica L *
Actaea cimicifuga ! C
Actaea dahurica D 8 *
Actaea erythrocarpa E 8 *
Actaea europaea ! C
Actaea foetida ! C
Actaea japonica C
Actaea pachypoda ! H 8 *
Actaea pachypoda 'Misty Blue' ! H 8 *
Actaea pachypoda f. rubrocarpa ! H 8 *
Actaea podocarpa L *
Actaea racemosa ! C
Actaea rubifolia C *
Actaea rubra ! H 8 *
Actaea rubra f. neglecta ! H 8 *
Actaea simplex ! E
Actaea simplex 'Black Negligee' (Atropurpurea Group) ! E
Actaea simplex 'Brunette' C *
Actaea simplex 'Hillside Black Beauty' C *
Actaea simplex 'Variegata' ! E
Actaea sp. ! J *
Actaea spicata ! C 8 *
Actaea spicata var. alba ! C 8 *
Actinea herbacea A
Actinidia kolomikta G *
Adelocaryum anchusoides A
Adelocaryum coelestinum A 3
Adenophora bulleyana A
Adenophora confusa F
Adenophora himalayana F
Adenophora hoffmannii ?
Adenophora kurilensis A 3
Adenophora liliifolia A 3
Adenophora nikoensis F
Adenophora remotiflora K 3 *
Adenophora sp. F
Adenophora stricta subsp. confusa F
Adenophora tashiroi J
Adenophora triphylla F
Adenophora triphylla var. japonica F
Adenophora verticillata F
Adenostyles leucophylla A
Adiantum pedatum A *
Adlumia asiatica ? 3
Adlumia fungosa A 3
Adonis aestivalis ! A *
Adonis all species ! *
Adonis amurensis ! L *
Adonis amurensis 'Genshu Fukujuso' ! L *
Adonis amurensis var. pseudoamurensis ! L *
Adonis apennina ! A *
Adonis cyllenea ! A *
Adonis Fukujukai' ! L *
Adonis pseudoamurensis ! L *
Adonis pyrenaica ! L *
Adonis ramosa ! L *
Adonis sibirica ! A *
Adonis species ! L *
Adonis vernalis ! L *
Aesculus glabra ! G *
Aesculus parviflora ! L
Aesculus pavia ! A *
Aethionema armenum A
Aethionema armenum 'Mavis Holmes' A
Aethionema cordifolium A
Aethionema diastrophis A
Aethionema glaucescens A
Aethionema glaucinum A
Aethionema grandiflorum A
Aethionema iberideum A
Aethionema most species A
Aethionema oppositifolium G
Aethionema saxatile K
Aethionema schistosum A
Aethionema sp. A
Aethionema speciosum L
Aethionema subulatum F
Aethionema Warley Rose' A
Aethionema x warleyense A
Agalinus sp. K
Agapanthus 'Baby Blue' A *
Agapanthus 'Blue Danube' A *
Agapanthus 'Dazzler' A *
Agapanthus 'Streamline' A *
Agapanthus 'Twister' A *
Agapanthus 'White Heaven' A *
Agapanthus 'White Swan' A *
Agapanthus Blue Triumphator' A *
Agapanthus Donau' A *
Agapanthus Headborne hybrid ! A *
Agapanthus hybrid A *
Agapanthus Northern Star' A *
Agapanthus Peter Pan' A *
Agapanthus praecox A *
Agapanthus Queen Anne' A *
Agapanthus Rotterdam' A *
Agapanthus Septemberhemel' A *
Agapanthus Silver Moon' A *
Agapanthus sp. A *
Agastache 'Astell Indigo' A
Agastache 'Blue Fortune' A
Agastache 'Bronze Foliage' A
Agastache all species *
Agastache aurantiaca 'Apricot Sprite' A
Agastache cana A
Agastache cana 'Sonoran Sunset' A
Agastache foeniculum A 3
Agastache foeniculum 'Alba' A
Agastache foeniculum 'Aureum' A
Agastache foeniculum 'Blue Fountain' A 3
Agastache foeniculum 'Golden Jubilee' K 3
Agastache hybrid A
Agastache mexicana A
Agastache mexicana 'Rosea' A
Agastache Morello' A
Agastache neomexicana A
Agastache nepetoides A 3
Agastache pallidiflora subsp. neomexicana A
Agastache pink Pop' A
Agastache pringlei A
Agastache rugosa K
Agastache rugosa 'Golden Jubilee' K 3
Agastache rugosa 'Liquorice Blue' A
Agastache rugosa f. albiflora A
Agastache rupestris A 3
Agastache rupestris 'Apache Sunset' A 3
Agastache scrophulariifolia A 3
Agastache sp. A *
Agastache urticifolia A
Agastache wrightii A
Agave parryi A 3
Ageratina altissima G
Ageratina altissima 'Chocolate' G
Ageratina occidentalis A
Ageratum houstonianum A
Ageratum houstonianum 'Leilani Blue' A
Ageratum hybrid A
Ageratum sp. A
Agrimonia eupatoria B
Agrostemma githago K
Agrostemma githago 'Ocean Pearl' K
Agrostemma sp. K
Agrostis nebulosa A *
Aguilegia vulgaris 'Winky Blue' A
Ajania tibetica K
Ajuga pyramidalis A
Akebia quinata G
Albizia julibrissin A 6 7
Albizia julibrissin 'Summer Chocolate' A 6 7
Albizia julibrissin var. rosea A 6 7
Albuca humilis A 2
Albuca nelsonii ! A
Albuca shawii A 3
Albuca sp. ! ? *
Albuca tenuifolia A 3
Alcea all species B 2
Alcea apterocarpa A
Alcea East Coast Hybrid B 2
Alcea ficifolia A 2
Alcea froloviana A 6
Alcea hohenackeri A 6
Alcea kardiya K
Alcea pallida B
Alcea rosea A 3
Alcea rosea 'Black Watchman' B 2
Alcea rosea 'Blacknight' (Spotlight Series) B 2
Alcea rosea 'Fiesta Time' B 2
Alcea rosea 'Halo Cerise' A
Alcea rosea 'Mars Magic' A
Alcea rosea 'Nigra ' B 2
Alcea rosea 'Queeny Purple' B 2
Alcea rosea 'The Watchman' B 2
Alcea rosea Chater's Double Group B 2
Alcea rosea East Coast Hybrid A 4
Alcea rosea ssp. ficifolia B 2
Alcea rugosa A
Alcea sp. B 2
Alchemilla alpigena A 3 *
Alchemilla alpina ? *
Alchemilla erythropoda B
Alchemilla faeroensis var. pumila J
Alchemilla glaucescens A
Alchemilla glaucescens subsp. pubescens A
Alchemilla hoppeana A 3 *
Alchemilla hybrida A
Alchemilla mollis A 3
Alchemilla monticola K 3 *
Alchemilla most species *
Alchemilla plicatula A 3
Alchemilla pratensis K 3 *
Alchemilla sp. ?
Alchemilla velebitica A 3 *
Alchemilla visianii A 3 *
Alchemilla vulgaris A 3 *
Alfredia cernua A
Aliciella haydenii L
Aliciella subnuda L
Alisma plantago ! B *
Alisma plantago-aquatica ! B *
Alisma subcordatum L 6 7 *
Alisma triviale ! B *
Allium acuminatum J
Allium aflatunense E
Allium akaka A
Allium alataviense L
Allium all species *
Allium altaicum A
Allium altissimum K
Allium amabile J
Allium ampeloprasum A
Allium amphibolum A
Allium angulosum J
Allium atropurpureum J
Allium azureum A
Allium backhousianum L
Allium baissunense ?
Allium caeruleum A
Allium cardiostemon 'Purple Gem' ?
Allium carinatum F
Allium carinatum subsp. pulchellum F
Allium carinatum subsp. pulchellum f. album F
Allium carolinianum A
Allium cernuum A
Allium cernuum 'Graton' A
Allium cernuum 'Leo' A
Allium cernuum f. alba A
Allium cernuum var. obtusum A
Allium chrysanthum L
Allium cristophii J
Allium cyaneum F
Allium cyathophorum J
Allium cyathophorum var. farreri J
Allium falcifolium A
Allium farreri J
Allium fistulosum A
Allium flavum A
Allium flavum 'Blue Leaf' J
Allium flavum 'Minor' J
Allium flavum subsp. tauricum J
Allium flavum var. minus J
Allium forrestii G
Allium geyeri A 2
Allium giganteum G
Allium Globemaster' J
Allium gooddingii A 2
Allium grayi A
Allium gultschense J
Allium gunibicum L
Allium Hair' G
Allium hirtifolium G 6 *
Allium hollandicum G 6 *
Allium hollandicum 'Purple Sensation' G 6 *
Allium hyalinum J
Allium hybrid ?
Allium hymenorhizum ?
Allium insubricum J
Allium jajlae ?
Allium jesdianum E
Allium kansuense A
Allium karataviense ! H *
Allium karataviense 'Ivory Queen' ! H *
Allium karataviense 'Red Giant' ! H *
Allium karataviense subsp. henrikii ! H *
Allium kokanicum A
Allium komarovianum A
Allium komarowii F
Allium lusitanicum L
Allium luteolum J
Allium luteum A
Allium mairei var. amabile A
Allium Mars' B
Allium Millenium' L
Allium moly H *
Allium Mount Everest' J
Allium murrayanum J
Allium narcissiflorum A
Allium neapolitanum ! J
Allium nevskianum J
Allium nigrum E
Allium nutans A
Allium nutans x senescens A
Allium obliquum A
Allium ochotense A
Allium ochroleucum J
Allium oreophilum J
Allium oschaninii A
Allium ostrowskianum J
Allium paczoskianum A
Allium paniculatum F
Allium perdulce J
Allium prostratum G
Allium pseudojaponicum ?
Allium pskemense J
Allium pulchellum F
Allium purpureum G
Allium ramosum A *
Allium rosenbachianum J
Allium roseum J
Allium roseum 'Album' K
Allium rotundum A
Allium rotundum subsp. jajlae J
Allium sacculiferum A
Allium sarawschanicum ?
Allium saxatile J
Allium schoenoprasum A
Allium schoenoprasum 'Bode Pastel' A
Allium schoenoprasum 'Curly Mauves' A
Allium schoenoprasum 'Forescate' A
Allium schoenoprasum f. albiflorum A
Allium schubertii A
Allium senescens G
Allium senescens 'Blue Eddy' G
Allium senescens subsp. glaucum G
Allium senescens subsp. montanum G
Allium senescens subsp. senescens G
Allium senescens x nutans A
Allium serawschanicum L
Allium Setlife' J
Allium sewerzowii F
Allium siculum B
Allium sikkimense A
Allium Silver Spring' A
Allium siskiyouense F
Allium sp. J
Allium sphaerocephalum G
Allium splendens A
Allium stellatum A
Allium stellerianum A
Allium stipitatum G 6 *
Allium stipitatum 'Mount Everest' F
Allium strictum J
Allium Summer Beauty' G
Allium Summer Pink' J
Allium suworowii F 3 *
Allium sylvestris J
Allium szovitsii L
Allium tanguticum A
Allium textile J
Allium thunbergii J
Allium thunbergii 'Ozawa ' J
Allium togashii J
Allium tricoccum ! E
Allium tripedale J
Allium tschimganicum ?
Allium tuberosum A
Allium uliginosum A
Allium unifolium J
Allium ursinum ! J
Allium victorialis ! A
Allium victorialis var. platyphyllum ! A
Allium vineale G
Allium zebdanense J
Alnus japonica A 3
Aloe marlothii A 3
Aloinopsis spathulata A
Alonsoa linearis A
Alstroemeria all species C 7 *
Alstroemeria aurantiaca C 7 *
Alstroemeria aurea C 7 *
Alstroemeria aurea 'Lutea' C 7 *
Alstroemeria Dr. Salter's Hybrids' J *
Alstroemeria hybrids C 2 7 *
Alstroemeria ligtu hybrids C 2 7 *
Alstroemeria lutea A 7
Alstroemeria presliana subsp. australis ?
Alstroemeria psittacina C 7 *
Alstroemeria sp. C 7 *
Alternanthera ficoidea A
Althaea armeniaca A
Althaea officinalis A
Althaea rosea A
Althaea rugosa B 2
Althaea taurinensis A
Alyssoides all species A
Alyssoides graeca B
Alyssoides utriculata B
Alyssum alyssoides A
Alyssum arcticum A
Alyssum argenteum A
Alyssum bertolonii subsp. bertolonii A
Alyssum caespitosum A 3
Alyssum cuneifolium B
Alyssum dagestanicum A 3
Alyssum fischerianum A 3
Alyssum Gold Crest' A
Alyssum handelii A 3
Alyssum idaeum A 3
Alyssum lenense A 3
Alyssum macrocarpum A
Alyssum markgrafii A 3
Alyssum montanum A
Alyssum most species A
Alyssum ovirense A
Alyssum oxycarpum A
Alyssum propinquum A
Alyssum pulvinare J
Alyssum saxatilis A
Alyssum serpyllifolium A
Alyssum sp. A
Alyssum spinosum A 3
Alyssum spinosum 'Roseum' A 3
Alyssum stribrnyi A
Alyssum wulfenianum A
Amaranthus caudatus A
Amaranthus cruentus A *
Amaranthus cruentus ?Velvet Curtains? A *
Amaranthus hybrid A *
Amaranthus hybridus A *
Amaranthus hypochondriacus A *
Amaranthus sp. A *
Amaryllis sp. A *
Amberboa muricata A
Amelanchier canadensis *
Amianthium muscitoxicum C
Ammi majus A 2
Ammi visnaga A
Ammi visnaga 'Green Mist' A
Amorpha canescens A 6 7
Amorpha nana G 6
Amorphophallus titanum ! A *
Ampelodesmos mauritanicus A 3
Ampelopsis brevipedunculata G 8
Ampelopsis brevipedunculata 'Variegata' G 8
Ampelopsis brevipedunculata var. maximowiczii G 8
Ampelopsis glandulosa var. brevipedunculata G 8
Amphicarpaea bracteata A 7
Amphicarpaea bracteata v. comosa A 7
Amsonia ciliata 'Halfway to Arkansas' L 7
Amsonia ellipsoides G
Amsonia elliptica C
Amsonia hubrichtii J
Amsonia illustris F
Amsonia jonesii A 3
Amsonia ludoviciana F
Amsonia orientalis G
Amsonia sp. F
Amsonia tabernaemontana G
Amsonia tabernaemontana 'Blue Ice' G
Amsonia tabernaemontana 'Montana' G
Amsonia tabernaemontana var. salicifolia G
Anacampseros densifolia A
Anacyclus depressus A
Anacyclus pyrethrum A
Anacyclus pyrethrum var. depressus A
Anacyclus pyrethrum var. depressus 'Garden Gnome' A
Anagallis all species *
Anagallis linifolia A
Anagallis monelli A
Anagallis monelli 'Skylover' A
Anagallis monelli subsp. linifolia A
Anaphalis alpicola A
Anaphalis lactea A
Anaphalis margaritacea A
Anaphalis triplinervis A
Anchusa angustifolia A 2
Anchusa azurea A
Anchusa azurea 'Dropmore' A
Anchusa azurea 'Feltham Pride' A
Anchusa capensis A
Anchusa leptophylla A
Anchusa leptophylla subsp. incana A
Anchusa officinalis A 2
Anchusa officinalis 'Angustifolia' A 2
Anchusa sp. A
Andromeda glaucophylla E
Andromeda polifolia K *
Andropogon gerardii A
Andropogon scoparius A
Andropogon ternarius A
Androsace adfinis E 3
Androsace adfinis ssp. brigitanica E 3
Androsace alba A
Androsace albana F
Androsace alpina A *
Androsace amurensis A 3
Androsace armeniaca var. macrantha A
Androsace barbulata A
Androsace brigantiaca E 3
Androsace carnea E 3
Androsace carnea 'Alba' F
Androsace carnea cross E 3
Androsace carnea mix E 3
Androsace carnea subsp. brigantiaca E 3
Androsace carnea subsp. laggeri E 3
Androsace carnea subsp. rosea E 3
Androsace carnea x pyrenaica E 3
Androsace chaixii H 3
Androsace chamaejasme A
Androsace ciliata G
Androsace cylindrica subsp. hirtella J
Androsace darvasica B
Androsace fedtschenkoi J
Androsace filiformis G
Androsace hausmannii ! L
Androsace hedreantha L
Androsace hirtella J
Androsace incana ! A
Androsace lactea H *
Androsace lactiflora A 3
Androsace laevigata L
Androsace lanuginosa E
Androsace mairei E 3
Androsace mathildae F
Androsace maxima A
Androsace Millstream' E 3
Androsace montana ! L
Androsace muscoidea A *
Androsace obtusifolia F
Androsace primuloides G
Androsace pyrenaica F
Androsace rotundifolia A
Androsace salicifolia A 3
Androsace sarmentosa G
Androsace sarmentosa ssp. primuloides G
Androsace sarmentosa subsp.primuloides G
Androsace sempervivoides A 3 *
Androsace septentrionalis A
Androsace septentrionalis ?Star Dust? A
Androsace sericea G
Androsace sp. L
Androsace spinulifera ! A
Androsace strigillosa K
Androsace studiosorum G
Androsace studiosorum 'Salmon's Variety' G
Androsace umbellata A 5
Androsace vandellii A
Androsace villosa A
Androsace villosa subsp. koso-poljanskii A
Androsace villosa var. arachnoidea G
Androsace x pedemontana J
Andryala agardhii A
Andryala integrifolia A
Andryala lanata A
Anemonastrum biarmiense ! A
Anemone alpina ! A
Anemone pulsatilla 'Pearl Bells' ! A
Anemone aconitifolia ! G
Anemone alpina ! A
Anemone alpina ssp apiifolia ! A
Anemone altaica ! A
Anemone baicalensis ! A
Anemone baldensis ! A
Anemone barbulata A
Anemone biarmiensis ! A
Anemone blanda A
Anemone canadensis ! E
Anemone caroliniana A
Anemone coronaria ! K
Anemone coronaria 'The Bride' ! A
Anemone crinita ! A *
Anemone cylindrica ! A
Anemone demissa ! A
Anemone dichotoma ! ? *
Anemone drummondii ! A
Anemone drummondii var. lithophila ! A
Anemone fasciculata ! L
Anemone flavescens ! A
Anemone globosa ! A
Anemone Guernica' ! A 2
Anemone halleri ! A
Anemone helvetica ! A
Anemone hortensis A
Anemone hupehensis ! B
Anemone hupehensis var. japonica 'Pamina' ! B
Anemone lesseri ! A 3
Anemone leveillei ! J
Anemone lithophila ! L
Anemone lithophilia ! J
Anemone lutea ! D *
Anemone magellanica ! A
Anemone multifida ! A
Anemone multifida 'Annabella Deep Rose' (Annabella Series) ! A
Anemone multifida 'Major' ! A
Anemone multifida 'Rubra' ! A
Anemone multifida var. globosa ! A
Anemone narcissiflora ! A
Anemone narcissiflora subsp. biarmiensis ! A
Anemone narcissiflora subsp. fasciculata ! A
Anemone nemorosa ! E *
Anemone obtusiloba ! A *
Anemone occidentalis ! A
Anemone palmata ! A
Anemone parviflora ! A
Anemone patens ! J
Anemone patens var. wolfgangiana ! J
Anemone pavonina ! A
Anemone pseudoaltaica ! A
Anemone pulsatilla ! A 9
Anemone pulsatilla 'Papageno' A
Anemone pulsatilla 'Rote Glocke' ! A 9
Anemone ranunculoides ! D *
Anemone riparia ! G
Anemone rivularis ! J
Anemone rivularis var. flore-minore ! A
Anemone rupicola ! A
Anemone slavica ! A
Anemone sp. ! A
Anemone sylvestris ! A
Anemone sylvestris 'Grandiflora' ! A
Anemone transsilvanica ! L
Anemone trifolia ! A *
Anemone trullifolia ! L
Anemone trullifolia 'Lutea' ! L
Anemone tschernaewii ! B
Anemone tuberosa ! C *
Anemone virginiana ! B
Anemone x hybrida 'Honorine Jobert' ! B *
Anemone x hybrida 'Josephine' ! B
Anemone x hybrida 'September Charm' ! B
Anemone x hybrida 'September Sprite' ! B
Anemone x lesseri ! A
Anemonella thalictroides ! G 2 *
Anemonoides baldensis ! A
Anemonopsis macrophylla ! A *
Anemopsis californica A *
Anethum graveolens A
Angelica archangelica A 3
Angelica archangelica subsp. litoralis A 3
Angelica arguta L 7
Angelica atropurpurea ! L 3
Angelica dahurica ! A 3
Angelica gigas ! A 3
Angelica grayi A 3
Angelica hispanica ! L *
Angelica keiskei ! A 3 7
Angelica pachycarpa A
Angelica sachalinensis ! ?
Angelica sinensis ! A 3
Angelica sp. ! C
Angelica sylvestris ! A 3
Angelica sylvestris 'Purpurea' ! A 3
Angelica sylvestris 'Vicar`s Mead' ! A 3
Angelica ursina ! A 3
Angelonia angustifolia A
Anigozanthos manglesii A
Anisodus luridus F
Anomatheca laxa A 3 *
Anomatheca laxa var. alba A 3 *
Anomatheca sp. A
Antennaria alpina F
Antennaria dioica A
Antennaria dioica 'Minima' F
Antennaria dioica 'Nyewoods Variety' F
Antennaria dioica 'Rosea' F
Antennaria dioica 'Rubra' F
Antennaria dioica var. rosea F
Antennaria friesiana F
Antennaria linearifolia A
Antennaria media L 3
Antennaria monocephala A
Antennaria neglecta F
Antennaria neglecta var. gaspensis F
Antennaria neodioica subsp. rosea A
Antennaria pulcherrima A
Antennaria rosea F
Antennaria rosea subsp. confinis A
Antennaria rosea subsp. pulvinata A
Antennaria solitaria A
Antennaria sp. F
Antennaria straminea A
Antennaria suffrutescens A
Anthemis aizoon B 3
Anthemis carpatica A
Anthemis carpatica subsp. pyrethriformis A
Anthemis cretica A
Anthemis cretica subsp. pontica A
Anthemis marschalliana A
Anthemis pauciloba A
Anthemis rudolphiana A
Anthemis sancti-johannis A
Anthemis sp. A
Anthemis sterilis K
Anthemis tinctoria A
Anthemis tinctoria 'Wargrave Variety' A
Anthemis tranzscheliana K
Anthemis triumfettii A
Anthericum liliago A
Anthericum liliastrum L
Anthericum lusitanicum L
Anthericum ramosum J
Anthriscus cerefolium A 1 3
Anthriscus sylvestris 'Ravenswing' A *
Anthyllis coccinea B 3 7
Anthyllis hermanniae L
Anthyllis montana A 6 7 *
Anthyllis montana 'Rubra' A 6 7
Anthyllis montana subsp. atropurpurea ! A 3 7
Anthyllis montana subsp. jacquinii A 6 7
Anthyllis vulneraria ! A 3 7
Anthyllis vulneraria subsp. alpestris A 3 7
Anthyllis vulneraria subsp. pulchella K 6 7
Anthyllis vulneraria var. coccinea ! A 3 7
Anticlea elegans J
Antirrhinum braun-blanquetii A
Antirrhinum Chandelier Lilac Blush' A
Antirrhinum hispanicum A
Antirrhinum majus A
Antirrhinum majus 'Black Prince' A
Antirrhinum majus 'Rocket Red' A
Antirrhinum majus subsp. majus A
Antirrhinum molle A *
Antirrhinum sempervirens L
Antirrhinum sp. A
Apios americana K 7
Apocynum androsaemifolium A
Aquilegia 'Lime Sorbet' A
Aquilegia 'Pink Ruffle' A
Aquilegia akitensis A
Aquilegia all species *
Aquilegia alpina ! A 4
Aquilegia amaliae A
Aquilegia atrata E
Aquilegia aurea A
Aquilegia barnebyi A
Aquilegia bertolonii ! A 3
Aquilegia bertolonii 'Blue Berry' A
Aquilegia Biedermeier Group A
Aquilegia Blue Jay' (Songbird Series) A
Aquilegia borodinii A
Aquilegia brevistyla A 3
Aquilegia buergeriana ! A
Aquilegia caerulea A
Aquilegia canadensis J
Aquilegia canadensis 'Corbett' J 4 *
Aquilegia canadensis 'Little Lanterns' J
Aquilegia canadensis 'Nana' J 4 *
Aquilegia chaplinei A 2 4
Aquilegia chrysantha A 2 4
Aquilegia chrysantha 'Yellow Queen' A 2 4
Aquilegia chrysantha var. chaplinei A 2 4
Aquilegia clematiflora A
Aquilegia columbiana A
Aquilegia desertorum A
Aquilegia discolor D 4
Aquilegia Dwarf Fantasy' A 4
Aquilegia ecalcarata ! J
Aquilegia elegantissima A
Aquilegia flabellata A 4
Aquilegia flabellata 'Alba' A 4
Aquilegia flabellata 'Cameo Pink' (Cameo Series) A 4
Aquilegia flabellata 'Flore Pleno Alba' A 4
Aquilegia flabellata 'Ministar' A 4
Aquilegia flabellata 'Nana Alba' A 4
Aquilegia flabellata 'Nana' A 4
Aquilegia flabellata Cameo Series A 4
Aquilegia flabellata f. alba A 4
Aquilegia flabellata var. kurilensis A 4
Aquilegia flabellata var. nana A 4
Aquilegia flabellata var. pumila A 4
Aquilegia flabellata var. pumila f. alba A 4
Aquilegia flavescens L
Aquilegia formosa A
Aquilegia formosa ssp.. canadensis A
Aquilegia fragrans A
Aquilegia glandulosa A
Aquilegia glandulosa var. jucunda A
Aquilegia grahamii L
Aquilegia Hensol Harebell' A
Aquilegia hybrid A
Aquilegia hybrida A 3
Aquilegia hybrids A
Aquilegia jonesii A 3
Aquilegia jonesii x saximontana ! A 4
Aquilegia karelinii ! J
Aquilegia Kristall' A
Aquilegia kurdistanica L
Aquilegia laramiensis A 4
Aquilegia Leprechaun Gold' A
Aquilegia longissima A
Aquilegia Magpie' A
Aquilegia McKana Group A
Aquilegia micrantha A
Aquilegia micrantha v. grahamii A
Aquilegia microphylla A 4
Aquilegia montana A
Aquilegia Mrs Scott Elliot hybrids A
Aquilegia nigricans A
Aquilegia nigricans subsp. subscaposa A
Aquilegia olympica L
Aquilegia Origami Mix' A
Aquilegia ottonis A
Aquilegia oxysepala L
Aquilegia parviflora A
Aquilegia Perfumed Garden Group A
Aquilegia pyrenaica A
Aquilegia pyrenaica subsp. cazorlensis G 4
Aquilegia pyrenaica subsp. discolor A
Aquilegia Red Hobbit' A
Aquilegia saximontana G 4 *
Aquilegia saximontana cross G 4 *
Aquilegia saximontana x jonesii A
Aquilegia scopulorum G 4 *
Aquilegia shockleyi A 3
Aquilegia sibirica A
Aquilegia sp. A
Aquilegia subscaposa A
Aquilegia thalictroides A
Aquilegia triternata J
Aquilegia ullepitschii A
Aquilegia viridiflora A 3
Aquilegia vulgaris A
Aquilegia vulgaris 'Burnished Rose' A
Aquilegia vulgaris 'Magpie' A
Aquilegia vulgaris 'Nivea' A
Aquilegia vulgaris 'Pink Petticoat' A
Aquilegia vulgaris 'William Guiness' A
Aquilegia vulgaris 'Winky Purple-White' A
Aquilegia vulgaris 'Woodside' (Vervaeneana Group) A
Aquilegia vulgaris double A
Aquilegia vulgaris Grandmother's Garden Group A
Aquilegia vulgaris hybrid A
Aquilegia vulgaris v. stellata 'Blue Barlow' A
Aquilegia vulgaris var. alba A
Aquilegia vulgaris var. flore-pleno A
Aquilegia vulgaris var. flore-pleno 'Tower Light Blue' A
Aquilegia vulgaris var. floro-plena 'Double Pleat' A
Aquilegia vulgaris var. stellata A
Aquilegia vulgaris var. stellata 'Black Barlow' (Barlow Series) A
Aquilegia vulgaris var. stellata 'Blue Barlow' A
Aquilegia vulgaris var. stellata 'Nora Barlow' A
Aquilegia vulgaris var. stellata 'Ruby Port' A
Aquilegia Winky Purple-White' A
Aquilegia x hybrida A
Aquilegia x scopulorum G 4
Aqulilegia sp. A
Arabis all species A
Arabis allionii A
Arabis alpina A *
Arabis alpina ssp. caucasica A *
Arabis alpina subsp. caucasica A *
Arabis androsacea A
Arabis blepharophylla A
Arabis blepharophylla 'Fruhlingszauber' A
Arabis blepharophylla 'Red Sensation' A
Arabis bryoides F
Arabis caerulea A
Arabis caucasica A 3
Arabis caucasica 'Rosea' A 3
Arabis caucasica 'Schneehaube' A 3
Arabis caucasica 'Snowfix' A *
Arabis collina A
Arabis collina subsp. rosea A
Arabis koehleri A
Arabis muralis A
Arabis pieninica A *
Arabis pumila A
Arabis purpurea A
Arabis scopoliana A 3
Arabis sp. A
Arabis stelleri var. japonica A
Arabis Variegata' ? 3
Arabis x arendsii A
Arabis x arendsii 'Rosabella' L
Arabis x sturii A
Aralia cachemirica L
Aralia californica G
Aralia chinensis G
Aralia continentalis G
Aralia cordata ! L
Aralia cordata 'Sun King' ! L
Aralia cordata var. sachalinensis ! L
Aralia edulis ! L
Aralia elata G
Aralia elata 'Variegata' G
Aralia hispida L
Aralia nudicaulis ! H *
Aralia racemosa ! H 4
Aralia sp. H 6 8 *
Arctanthemum arcticum A
Arcterica nana K
Arctostaphylos all species L 3 6 7 *
Arctostaphylos uva-ursi ! G 6 7 *
Arctotis acaulis A
Arctotis adpressa A
Arctotis fastuosa A
Arctotis grandis A
Arctotis rosea A
Arctotis stoechadifolia A
Arctotis venusta A
Ardisia primulifolia ? *
Arenaria all species A
Arenaria balearica A
Arenaria cretica A 3
Arenaria festucoides B
Arenaria grandiflora A
Arenaria kingii A
Arenaria ledebouriana F
Arenaria longifolia A
Arenaria montana A
Arenaria norvegica A *
Arenaria obtusiloba A
Arenaria procera subsp. glabra A
Arenaria pseudacantholimon A *
Arenaria sp. A
Arenaria tetraquetra A
Arenaria tetraquetra subsp. amabilis A
Argemone grandiflora A 2
Argemone hispida L *
Argemone mexicana K
Argemone mexicana var. ochroleuca K
Argemone sp. K
Argemone squarrosa A
Argemone squarrosa subsp. glabrata A
Argentina egedii A
Argyranthemum frutescens A
Argyranthemum pinnatifidum A
Arisaema all species 8 *
Arisaema amurense A 8 *
Arisaema angustatum var. peninsulae A 8 *
Arisaema atrorubens A 8 *
Arisaema bockii B 8 *
Arisaema candidissimum A 8 *
Arisaema ciliatum A 8 *
Arisaema ciliatum 'Sky Wish' A 8 *
Arisaema ciliatum var. liubaense A 8 *
Arisaema consanguineum A 8 *
Arisaema consanguineum 'The Perfect Wave' A 8 *
Arisaema dracontium A 8 *
Arisaema engleri B 8 *
Arisaema fargesii A 8 *
Arisaema flavum A 8 *
Arisaema flavum subsp. abbreviatum B 8 *
Arisaema griffithii A 8 *
Arisaema helleborifolium A 8 *
Arisaema heterophyllum A 8 *
Arisaema himalaicum 8 *
Arisaema jacquemontii A 8 *
Arisaema japonicum A 8 *
Arisaema ovale B 8 *
Arisaema peninsulae A 8 *
Arisaema quinatum 8 *
Arisaema ringens A 8 *
Arisaema robustum A 8 *
Arisaema serratum A 8 *
Arisaema serratum 'Silver Leaf Form' A 8 *
Arisaema serratum var. serratum A 8 *
Arisaema sikokianum A 8 *
Arisaema sikokianum x takedae A 2 8 *
Arisaema sp. D 8 *
Arisaema speciosum F 8 *
Arisaema tortuosum A 8 *
Arisaema triphyllum A 8 *
Arisaema triphyllum 'Mrs French's veined form' A 8 *
Arisaema triphyllum 'Starburst' A 8 *
Arisaema triphyllum subsp. quinatum A 8 *
Arisaema urashima A 8 *
Arisaema utile A 8 *
Arisaema yunnanense A 8 *
Arisarum proboscideum A
Aristea capitata C
Aristlochia firmbriata A 7 8
Aristolochia contorta A
Aristolochia fimbriata A 7
Aristolochia littoralis A
Armeria alliacea L
Armeria alliacea f. leucantha L
Armeria alpina A *
Armeria Bee's hybrids A
Armeria bourgaei A 2
Armeria caespitosa ! A *
Armeria duriaei A 2
Armeria euscadiensis A
Armeria filicaulis A 2
Armeria formosa hybrids A
Armeria hybrida A 7
Armeria Joystick Red' A
Armeria Joystick Series A
Armeria juniperifolia A *
Armeria latifolia A
Armeria latifolia var. macrantha B
Armeria maritima A 2
Armeria maritima 'Laucheana ' A 2
Armeria maritima 'Ministicks White' A 2
Armeria maritima 'Rubrifolia ' A 2
Armeria maritima 'Vindictive' A 2
Armeria maritima subsp. alpina A 2
Armeria maritima subsp. bottendorfensis A 2
Armeria maritima subsp. elongata A 2
Armeria maritima subsp.sibirica A 2
Armeria maritima var. labradorica A 2
Armeria morisii B
Armeria Ornament' A 7
Armeria plantaginea B
Armeria pseudarmeria B
Armeria rhodopea A
Armeria rubrifolia K
Armeria rumelica A
Armeria ruscinonensis A 2
Armeria scabra A 2
Armeria scabra subsp. sibirica A 2
Armeria scabra var. sibirica A 2
Armeria sp. A
Armeria splendens A 2
Armeria trojana A
Armeria Vesuvius' B
Armeria welwitschii A
Arnebia echioides A
Arnebia pulchra C
Arnica alpina A
Arnica angustifolia J
Arnica angustifolia subsp. iljinii J
Arnica chionopappa K
Arnica cordifolia K
Arnica frigida A
Arnica iljinii A
Arnica lonchophylla K
Arnica longifolia A
Arnica montana A
Arnica montana subsp. montana A
Arnica nevadensis A
Arnica sachalinensis ?
Arnica sp. ?
Aronia melanocarpa G 7
Aronia melanocarpa ?Red Viking? C
Aronia melanocarpa 'Autumn Magic' J 7
Aronia x prunifolia G 7
Artemisia chamaemelifolia F
Artemisia cretacea A
Artemisia dracunculus F
Artemisia frigida A 3
Artemisia genipi F
Artemisia lactiflora (Guizhou group) F
Artemisia ludoviciana 'Valerie Finnis' B 3 *
Artemisia molinieri A
Artemisia nutans A
Artemisia pamirica A 2
Artemisia Powis Castle' A 3
Artemisia rutifolia ?
Artemisia stelleri A
Artemisia stelleriana 'Boughton Silver' F
Artemisia stelleriana 'Silver Brocade' F
Artemisia vachanica A
Artemisia vallesiaca A
Artemisia viridis A
Arthropodium candidum L
Arthropodium cirrhatum A
Arum Chameleon' ! D 2 7 *
Arum concinnatum ! D 2 7 *
Arum dioscoridis H *
Arum italicum ! D 2 7 *
Arum italicum ?White Winter' ! D 2 7 *
Arum italicum 'McClement Form' ! D 2 7 *
Arum italicum 'Pictum ' ! D 2 7 *
Arum italicum subsp. italicum 'Marmoratum' ! D 2 7 *
Arum maculatum ! D 2 7 *
Arum palaestinum ! D 2 7 *
Arum sp. ! D 2 7 *
Aruncus aestivus J 3
Aruncus aethusifolius J
Aruncus aethusifolius 'Noble Spirit' H
Aruncus dioicus A
Aruncus dioicus 'Kneiffii ' A
Aruncus dioicus var. aethusifolius J
Aruncus hybrid K
Aruncus laciniatus E
Aruncus Misty Lace' ? *
Aruncus most species *
Aruncus sp. K
Aruncus sylvester J 3
Aruncus vulgaris A
Asarina erubescens A
Asarina Joan Lorraine' A
Asarina procumbens A 3
Asarina purpusii A
Asarina scandens A
Asarina scandens 'Joan Lorraine' A
Asarina sp. A
Asarum canadense ! E *
Asarum europaeum ! E 8 *
Asclepias all species *
Asclepias curassavica A
Asclepias exaltata J
Asclepias incarnata A 1 3 *
Asclepias incarnata 'Alba' J 1 3 *
Asclepias incarnata 'Cinderella ' J 1 3 *
Asclepias incarnata 'Ice Ballet' J 1 3 *
Asclepias incarnata 'Soulmate' J 1 3 *
Asclepias purpurascens G
Asclepias purpurea J
Asclepias sp. A *
Asclepias syriaca A
Asclepias tuberosa A 1 *
Asclepias tuberosa 'Hello Yellow' A 1 *
Asclepias tuberosa Gay Butterflies Group A 1 *
Asclepias verticillata L
Asimina triloba ! J
Asparagus officinalis A 7
Asparagus officinalis A 7
Asparagus officinalis var. psuedoscaber A 7
Asperula abchasica L
Asperula azurea A
Asperula capitata A 3
Asperula glauca ?
Asperula glomerata subsp. glomerata A 3
Asperula gussonei A
Asperula nitida L
Asperula nitida subsp. hirtella L
Asperula orientalis A
Asperula tinctoria J
Asphodeline damascena A
Asphodeline liburnica A 2
Asphodeline lutea A
Asphodeline sp. K
Asphodeline taurica A
Asphodelus albus A
Asphodelus cerasiferus B
Asphodelus damascenus A
Asphodelus fistulosus K
Asphodelus luteus A
Aspleniaceae whole genus A *
Asplenium trichomanes A *
Aster acuminatus B
Aster ageratoides A 3
Aster ageratoides 'Star Shine' A
Aster ageratoides 'Tiny Theo' A 3
Aster all species *
Aster alpigenus A
Aster alpinus A
Aster alpinus 'Albus' A
Aster alpinus 'Dark Beauty' J
Aster alpinus 'Goliath' J
Aster alpinus 'Happy End' J
Aster alpinus 'Maerchenland' A
Aster alpinus 'Pinkie' J
Aster alpinus 'White Beauty'' J
Aster alpinus hybrid J
Aster alpinus subsp. dolmiticus J
Aster altaicus B 3
Aster amellus 'Rudolphe Goethe' ! L
Aster asteroides ssp. costei A 3
Aster chinensis 'Hulk' B
Aster coloradoensis B
Aster conspectus B 2
Aster cordifolius B
Aster diplostephioides J
Aster divaricatus B
Aster dumosus 'Gold Flake' B
Aster ericoides ! H
Aster farreri B
Aster flaccidus B
Aster gracilentus A
Aster heterochaeta B
Aster himalaicus B
Aster kantoensis B 3
Aster laevis B
Aster lateriflorus B
Aster likiangensis J
Aster linariifolius B
Aster linosyris ! L
Aster maritimus A 3
Aster mongolicus B
Aster nemoralis B
Aster nepaulensis B
Aster novae-angliae B
Aster oblongifolius 'October Skies ' B
Aster ptarmicoides 'Summer Snow' B
Aster Purple Dome' B
Aster sibiricus B
Aster sikkimmensis B
Aster Snow Flurry' (Novi belgii) B
Aster souliei B
Aster sp. J
Aster stracheyi B
Aster tataricus J
Aster tongolensis B
Aster tongolensis 'Wartburg Star' B
Aster umbellatus B
Aster x frikartii B
Aster x frikartii 'Wunder von Stafa ' B
Aster yunnanensis B
Asteromoea mongolica A
Astilbe biternata A 3
Astilbe chinensis A 3 *
Astilbe chinensis 'Vision in Red' A 3 *
Astilbe chinensis var. davidii A 3 *
Astilbe chinensis var. pumila A 3 *
Astilbe Fanal' (x arendsii) A 3
Astilbe hybrid A *
Astilbe rubra A
Astilbe rubra 'Purple Candles' A
Astilbe rubra 'Valerie' A
Astilbe simplicifolia A
Astilbe sp. A 3 *
Astilbe thunbergii var. formosa A
Astilbe Willie Buchanan' A
Astilboides all species *
Astilboides tabularis A 3 *
Astracantha gummifera A 1 6 7
Astragalus alexandrii K 6
Astragalus all species *
Astragalus alpinus A 1 6 *
Astragalus alyssoides A 1 6 7 *
Astragalus canadensis A 1 6 7 *
Astragalus centralpinus A 6 7
Astragalus cicer K 6
Astragalus crassicarpus A 6 7
Astragalus danicus L 1 6 7 *
Astragalus frigidus A 1 6 7 *
Astragalus glycyphyllos A 1 6 7 *
Astragalus gummifera A 1 6 7
Astragalus lasiopetalus A 1 6 7 *
Astragalus membranaceus J 6 7 *
Astragalus mongholicus A 6 7
Astragalus neglectus A 6 7
Astragalus parryi *
Astragalus pelecinus A 6 7
Astragalus penduliflorus A 6 7
Astragalus propinquus J 6 7
Astragalus purshii A 1 6 7 *
Astragalus roemeri *
Astragalus sericeus A 1 6 7 *
Astragalus sinicus J 7
Astragalus sp. A 1 6 7 *
Astragalus suzgatus A 1 6 7
Astragalus whitneyi A 1 6 7 *
Astrantia carniolica var. rubra ! B 2
Astrantia major 'Alba' ! H 2
Astrantia major 'Lars ' ! H 2
Astrantia major 'Roma' ! H 2
Astrantia major 'Rubra' ! H 2
Astrantia major 'Ruby Cloud' ! H 2
Astrantia major 'Ruby Wedding' ! H 2
Astrantia major 'Star of Billion' ! H 2
Astrantia major 'Sunningdale Variegated' ! H 2
Astrantia major 'Variegata' ! H 2
Astrantia major 'White Star' ! H 2
Astrantia major subsp. carnolica ! H 2
Astrantia major subsp. involucrata 'Shaggy' ! H 2
Astrantia major var. rosea ! H 2
Astrantia maxima ! H 2
Astrantia maxima 'Alba' ! H 2
Astrantia sp. ! H 2
Asyneuma limonifolium L
Athamanta Denver Lace' ?
Athamanta turbith A
Athamanta turbith subsp. haynaldii A
Athyrium filix-femina 'Victoriae' A *
Athyrium niponicum A *
Atragene ochotensis D 9
Atraphaxis sp. L
Atriplex 'Red Flash' A
Atriplex hortensis A
Atriplex hortensis var. rubra A
Atropa belladonna L 4 7
Aubrieta Blue Cascade' (Cascade Series) A
Aubrieta canescens A
Aubrieta deltoidea A
Aubrieta deltoidea 'Nana Variegata' A
Aubrieta gracilis K
Aubrieta intermedia A 3
Aubrieta kotschyi A 3
Aubrieta macedonica A
Aubrieta most species A
Aubrieta parviflora A 3
Aubrieta pinardii A
Aubrieta scardica A
Aubrieta sp. A
Aureolaria virginica ! G
Aurinia corymbosa A
Aurinia saxatilis A
Aurinia saxatilis 'Carpet of Gold' A
Aurinia saxatilis 'Citrina ' A
Aurinia saxatilis 'Compacta' A
Aurinia saxatils 'Citrinum' A
Avenella flexuosa A
Azalea Boudoir' A *
Azalea Ghent hybrid A *
Azalea kiusianum 'Komo Kulshan' A *
Azalea Mollis hybrid A *
Azalea Phyllis Moore' A *
Azalea Sandra Hinton' A *
Azalea sp. A *
Baccharis magellanica K
Baileya multiradiata A
Ballota acetabulosa A
Ballota pseudodictamnus A
Balsamorhiza sagittata J
Banksia ericifolia J *
Baptisia 'Solar Flare' A 7 *
Baptisia 'Vanilla Cream' A 7 *
Baptisia 'Vanilla Cream' A 7 *
Baptisia alba A 7 *
Baptisia australis A 7 *
Baptisia australis 'Blueberry Sundae' A 7 *
Baptisia Blueberry Sundae' A 7 *
Baptisia Dutch Chocolate' A 7 *
Baptisia hybrid A 7 *
Baptisia lactea A 7 *
Baptisia Lemon Meringue' A 7 *
Baptisia leucantha G 7 *
Baptisia leucophaea G 7 *
Baptisia perfoliata J *
Baptisia Prairieblues Series A 7 *
Baptisia sp. A 7 *
Baptisia tinctoria A 6 7 *
Baptisia Twilite' A 7 *
Baptisia variicolor 'Twilite'(Pairieblues Series) A 7 *
Baptisia x variicolor 'Twilite' A 7 *
Barbarea rupicola A
Barnardia japonica A
Barnardia numidica A
Bartsia alpina E
Begonia boliviensis A 3
Begonia grandis A
Begonia grandis 'Alba' A
Begonia grandis ssp. sinensis A
Begonia grandis subsp. evansiana A
Begonia sp. A
Begonia sutherlandii A 3
Begonia x albopicta A
Belamcanda chinensis A 3 *
Belamcanda sp. A
Bellevalia forniculata