Taxonomic Listing of genera and families with an ICRA
Alphabetical List: S


Reference under EGF refers to volume and page of the entry in the six-volume European Garden Flora
published by Cambridge University Press, UK (1984-2000)

Taxonomic List EGF ICRA
Sageretia Brongn. 5:193 AMERICAN PUBLIC GARDENS ASSOCIATION
Saintpaulia H. Wendl. = Streptocarpus Lindl. sect. Saintpaulia (H. Wendl.) Mich. Möller & Haston 6:395 AFRICAN VIOLET SOCIETY OF AMERICA, INC. (A.V.S.A.)
Salix L. 3:21 INTERNATIONAL POPLAR COMMISSION, F.A.O.
Salpichroa Miers 6:251 AMERICAN PUBLIC GARDENS ASSOCIATION
Samanea (DC.) Merr. 4:470 AMERICAN PUBLIC GARDENS ASSOCIATION
Sambucus L. 6:416 AMERICAN PUBLIC GARDENS ASSOCIATION
Sanango G. S. Bunting & J. A. Duke - THE GESNERIAD SOCIETY, INC.
Sandersonia Hook. 1:120 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Sandoricum Cav. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sankowskya P. I. Forst. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Santalum L. 3:120 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Santolina L. 6:606 AMERICAN PUBLIC GARDENS ASSOCIATION
Sapindus L. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sapium Jacq. 5:80 AMERICAN PUBLIC GARDENS ASSOCIATION
Saraca L. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sarcococca Lindl. 5:181 AMERICAN PUBLIC GARDENS ASSOCIATION
Sarcopetalum F. Muell. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sarcopoterium Spach 4:380 AMERICAN PUBLIC GARDENS ASSOCIATION
Sarcotoechia Radlk. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sarcozona J. M. Black - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sargentodoxa Rehder & E. H. Wilson - AMERICAN PUBLIC GARDENS ASSOCIATION
Sarmienta Ruiz & Pav. 6:393 THE GESNERIAD SOCIETY, INC.
Sarothamnus Wimm. = Cytisus Desf. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sarracenia L. 4:79 INTERNATIONAL CARNIVOROUS PLANT SOCIETY (I.C.P.S.)
Sarraceniaceae Dumort. - INTERNATIONAL CARNIVOROUS PLANT SOCIETY (I.C.P.S.)
Sasa Makino & Shibata - INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Sasaella Makino - INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Sassafras T. Nees & C. H. Eberm. 3:321 AMERICAN PUBLIC GARDENS ASSOCIATION
Saurauia Willd. 4:28 AMERICAN PUBLIC GARDENS ASSOCIATION
Sauromatum Schott 2:106 INTERNATIONAL AROID SOCIETY (I.A.S.)
Saxegothaea Lindl. - ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Saxegothea Lindl. 1:76 ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Saxifraga L. 4:251 SAXIFRAGE SOCIETY
Scadoxus Raf. 1:315 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Scaevola L. 6:503 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Scambopus O. E. Schulz - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Scaphispatha Brongn. ex Schott - INTERNATIONAL AROID SOCIETY (I.A.S.)
Scaphium Schott & Endl. - AMERICAN PUBLIC GARDENS ASSOCIATION
Schaefferia Jacq. 5:173 AMERICAN PUBLIC GARDENS ASSOCIATION
Schefflera J. R. Forst. & G. Forst. 5:384 AMERICAN PUBLIC GARDENS ASSOCIATION
Schelhammera R. Br. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Schima Reinw. ex Blume 4:41 AMERICAN PUBLIC GARDENS ASSOCIATION
Schimlinia Ranney & Fanz (Franklinia W. Bartram ex Marshall × Schima Reinw. ex Blume) - AMERICAN PUBLIC GARDENS ASSOCIATION
Schinopsis Engl. 5:129 AMERICAN PUBLIC GARDENS ASSOCIATION
Schinus L. 5:130 AMERICAN PUBLIC GARDENS ASSOCIATION
Schisandra Michx. 3:318 AMERICAN PUBLIC GARDENS ASSOCIATION
Schismatoglottis Zoll. & Moritzi 2:91 INTERNATIONAL AROID SOCIETY (I.A.S.)
Schistocarpaea F. Muell. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Schistolobos W. T. Wang - THE GESNERIAD SOCIETY, INC.
Schizobasis Baker - ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Schizoboea (Fritsch) B. L. Burtt = Streptocarpus Lindl. - THE GESNERIAD SOCIETY, INC.
Schizocasia Schott = Alocasia (Schott) G. Don - INTERNATIONAL AROID SOCIETY (I.A.S.)
Schizocodon Siebold & Zucc. = Shortia Torr. & A. Gray - AMERICAN PUBLIC GARDENS ASSOCIATION
Schizolobium Vogel - AMERICAN PUBLIC GARDENS ASSOCIATION
Schizophragma Siebold & Zucc. - AMERICAN PUBLIC GARDENS ASSOCIATION
Schizostachyum Nees - INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Schizostylis Backh. & Harv. 1:377 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Schleichera Willd. - AMERICAN PUBLIC GARDENS ASSOCIATION
Schoenia Steetz - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Schoenolaena Bunge - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Schoenolirion Torr. 1:133 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Scholtzia Schauer - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Schotia Jacq. 4:478 AMERICAN PUBLIC GARDENS ASSOCIATION
Schrebera Roxb. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sciadopityaceae Luerss. - ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Sciadopitys Siebold & Zucc. 1:78 ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Scilla L. 1:211 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Scindapsus Schott 2:86 INTERNATIONAL AROID SOCIETY (I.A.S.)
Scleroblitum Ulbr. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sclerocarya Hochst. 5:131 AMERICAN PUBLIC GARDENS ASSOCIATION
Sclerolaena R. Br. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sclerostegia Paul G. Wilson - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Scyphocoronis A. Gray - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
×Seleliocereus Guill. (Heliocereus (A. Berger) Britton & Rose (=Disocactus Lindl.) × Selenicereus (A. Berger) Britton & Rose) = Disoselenicereus E. Meier - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
Selenicereus (A. Berger) Britton & Rose 3:212 EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
×Seleniphylchia Süpplie (Epiphyllum Haw. × Nopalxochia Britton & Rose (=Disocactus Lindl.) × Selenicereus (A. Berger) Britton & Rose) = Paulheathara Trehane - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
Seleniphyllum Rowley (Epiphyllum Haw. × Selenicereus (A. Berger) Britton & Rose) - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
×Seleniporacactus Rowley (Aporocactus Lem. (=Disocactus Lindl.) × Selenicereus (A. Berger) Britton & Rose) = Disoselenicereus E. Meier - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
×Selenochia Rowley (Nopalaxocha Britton & Rose (=Disocactus Lindl.) × Selenicereus (A. Berger) Britton & Rose) = Disoselenicereus E. Meier - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
Selenothamnus Melville - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Selliera Cav. 6:507 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Semecarpus L. f. 5:131 AMERICAN PUBLIC GARDENS ASSOCIATION
Semele Kunth 1:263 AMERICAN PUBLIC GARDENS ASSOCIATION
Semiarundinaria Makino ex Nakai Shibataea Makino ex Nakai Sinobambusa Makino ex Nakai Strephium Schrader Streptochaeta Schrader ex Nees Streptogyna P. de Beauv. - INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Senna Mill. - AMERICAN PUBLIC GARDENS ASSOCIATION
Senniella Aellen - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sepikea Schltr. - THE GESNERIAD SOCIETY, INC.
Sequoia Endl. 1:76 ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Sequoiadendron J. Buchholz 1:78 ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Seringia J. Gay - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Seriphidium (Bess.) Poljak. - AMERICAN PUBLIC GARDENS ASSOCIATION
Serissa Comm. ex Juss. 6:93 AMERICAN PUBLIC GARDENS ASSOCIATION
Serjania Mill. 5:155 AMERICAN PUBLIC GARDENS ASSOCIATION
Serruria Burm. ex Salisb. - PROTEACEAE CULTIVAR REGISTRATION AUTHORITY, NATIONAL DEPARTMENT OF AGRICULTURE (SOUTH AFRICA)
Sesbania Scop. 4:490 AMERICAN PUBLIC GARDENS ASSOCIATION
Severinia Ten. ex Endl. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sextonia van der Werff - AMERICAN PUBLIC GARDENS ASSOCIATION
Shepherdia Nutt. 5:245 AMERICAN PUBLIC GARDENS ASSOCIATION
Shorea Roxb. ex C. F. Gaertn. - AMERICAN PUBLIC GARDENS ASSOCIATION
Shortia Torr. & A. Gray 5:413 AMERICAN PUBLIC GARDENS ASSOCIATION
Sibiraea Maxim. 4:341 AMERICAN PUBLIC GARDENS ASSOCIATION
×Siblara Heath (Aporocactus Lem. (=Disocactus Lindl.) × Epiphyllum Haw. × Heliocereus (A. Berger) Britton & Rose (=Disocactus Lindl.) × Nopalxochia Britton & Rose (=Disocactus Lindl.) × Selenicereus (A. Berger) Britton & Rose) = Paulheathara Trehane - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
Siegfriedia C. A. Gardner - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Simaba Aubl. - AMERICAN PUBLIC GARDENS ASSOCIATION
Simarouba Aubl. - AMERICAN PUBLIC GARDENS ASSOCIATION
Simethis Kunth 1:131 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Simmondsia Nutt. 5:183 AMERICAN PUBLIC GARDENS ASSOCIATION
Sindora Miq. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sinningia Nees 6:378 THE GESNERIAD SOCIETY, INC.
Sinocalycalycanthus F.T.Lass. & Fantz (Calycanthus L. × Sinocalycanthus (W. C. Cheng & S. Y. Chang) W. C. Cheng & S. Y. Chang ) - AMERICAN PUBLIC GARDENS ASSOCIATION
Sinocalycanthus (C. C. Cheng & S. Y. Chang) C. C. Cheng & S. Y. Chang - AMERICAN PUBLIC GARDENS ASSOCIATION
Sinofranchetia (Diels) Hemsl. 3:397 AMERICAN PUBLIC GARDENS ASSOCIATION
Sinojackia Hu 5:573 AMERICAN PUBLIC GARDENS ASSOCIATION
Sinomenium Diels 3:399 AMERICAN PUBLIC GARDENS ASSOCIATION
Sinowilsonia Hemsl. 4:170 AMERICAN PUBLIC GARDENS ASSOCIATION
Siphonodon Griff. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Siphonosmanthus Stapf = Osmanthus Lour. - AMERICAN PUBLIC GARDENS ASSOCIATION
Skimmia Thunb. 5:111 AMERICAN PUBLIC GARDENS ASSOCIATION
Sleumerodendron Virot - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sloanea L. 5:203 AMERICAN PUBLIC GARDENS ASSOCIATION
Smilax L. 1:269 AMERICAN PUBLIC GARDENS ASSOCIATION
Smithiantha Kuntze 6:374 THE GESNERIAD SOCIETY, INC.
Solandra Sw. 6:253 AMERICAN PUBLIC GARDENS ASSOCIATION
Solenogyne Cass. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Solenomelus Miers 1:376 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Solenophora Benth. - THE GESNERIAD SOCIETY, INC.
Sollya Lindl. 4:322 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sophora L. 4:485 AMERICAN PUBLIC GARDENS ASSOCIATION
Sorbaria (Ser.) A. Braun 4:328 AMERICAN PUBLIC GARDENS ASSOCIATION
Sorbaronia C. K. Schneid. (Aronia Medik. × Sorbus L.) 4:420 AMERICAN PUBLIC GARDENS ASSOCIATION
Sorbocotoneaster Pojark. (Cotoneaster Medik. × Sorbus L.) - AMERICAN PUBLIC GARDENS ASSOCIATION
Sorbopyrus C. K. Schneid. (Pyrus L. × Sorbus L.) 4:408 AMERICAN PUBLIC GARDENS ASSOCIATION
Sorbus L. 4:413 AMERICAN PUBLIC GARDENS ASSOCIATION
Sorocephalus R. Br. - PROTEACEAE CULTIVAR REGISTRATION AUTHORITY, NATIONAL DEPARTMENT OF AGRICULTURE (SOUTH AFRICA)
Sowerbaea Sm. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sparaxis Ker Gawl. 1:387 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Sparrmannia L. f. 5:213 AMERICAN PUBLIC GARDENS ASSOCIATION
Spartium L. 4:545 AMERICAN PUBLIC GARDENS ASSOCIATION
Spartochloa C. E. Hubb. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Spartocytisus Webb. = Cytisus Desf. - AMERICAN PUBLIC GARDENS ASSOCIATION
Spartothamnella Briq. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Spatalla Salisb. - PROTEACEAE CULTIVAR REGISTRATION AUTHORITY, NATIONAL DEPARTMENT OF AGRICULTURE (SOUTH AFRICA)
Spathantheum Schott - INTERNATIONAL AROID SOCIETY (I.A.S.)
Spathia Ewart - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Spathicarpa Hook. 2:104 INTERNATIONAL AROID SOCIETY (I.A.S.)
Spathiphyllum Schott 2:87 INTERNATIONAL AROID SOCIETY (I.A.S.)
Spathodea P. Beauv. 6:348 AMERICAN PUBLIC GARDENS ASSOCIATION
Sphacele Benth. = Lepechinia Willd. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sphaeralcea A. St.-Hil. 5:222 AMERICAN PUBLIC GARDENS ASSOCIATION
Sphaerantia Peter G. Wilson & B. Hyland - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sphaerolobium Sm. 4:528 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sphalmium B. G. Briggs, B. Hyland & L. A. S. Johnson - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Sphenotoma (R. Br.) Sweet - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Spigelia L. 6:17 AMERICAN PUBLIC GARDENS ASSOCIATION
Spiraea L. 4:331 AMERICAN PUBLIC GARDENS ASSOCIATION
Spirogardnera Stauffer - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Spondias L. 5:131 AMERICAN PUBLIC GARDENS ASSOCIATION
Sprekelia Heist. 1:295 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Sprengelia Sm. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Spyridium Fenzl - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stachystemon Planch. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stachyurus Siebold & Zucc. 5:257 AMERICAN PUBLIC GARDENS ASSOCIATION
Stackhousia Sm. 5:180 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Staehelina L. 6:522 AMERICAN PUBLIC GARDENS ASSOCIATION
Staphylea L. 5:180 AMERICAN PUBLIC GARDENS ASSOCIATION
Stauntonia DC. 3:397 AMERICAN PUBLIC GARDENS ASSOCIATION
Stauranthera Benth. - THE GESNERIAD SOCIETY, INC.
Stawellia F. Muell. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stellera L. 5:243 AMERICAN PUBLIC GARDENS ASSOCIATION
Stenanthemum Reissek - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stenocarpus R. Br. 3:115 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stenomesson Herb. 1:321 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Stenopetalum R. Br. ex DC. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stenospermation Schott 2:86 INTERNATIONAL AROID SOCIETY (I.A.S.)
Stephanandra Siebold & Zucc. 4:331 AMERICAN PUBLIC GARDENS ASSOCIATION
Stephania Lour. - AMERICAN PUBLIC GARDENS ASSOCIATION
Sterculia L. 5:231 AMERICAN PUBLIC GARDENS ASSOCIATION
Sternbergia Waldst. & Kit. 1:295 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Steudnera K. Koch - INTERNATIONAL AROID SOCIETY (I.A.S.)
Stewartia L. 4:29 THE POLLY HILL ARBORETUM
Steyerbromelia L. B. Sm. - BROMELIAD SOCIETY INTERNATIONAL (B.S.I)
Stigmaphyllon A. Juss. 5:122 AMERICAN PUBLIC GARDENS ASSOCIATION
Stirlingia Endl. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Strangea Meisn. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stranvaesia Lindl. = Photinia Lindl. - AMERICAN PUBLIC GARDENS ASSOCIATION
×Stranvinia anon. (Photinia Lindl. × Stranvaesia Lindl. (=Photinia Lindl.)) = Photinia Lindl. - AMERICAN PUBLIC GARDENS ASSOCIATION
Streptanthera Sweet = Sparaxis Ker Gawl. - ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Streptocalyx Beer = Aechmea Ruiz & Pav. - BROMELIAD SOCIETY INTERNATIONAL (B.S.I)
Streptocarpus Lindl., excluding sect. Saintpaulia (H. Wendl.) Mich. Möller & Haston 6:402 THE GESNERIAD SOCIETY, INC.
Streptocarpus Lindl. sect. Saintpaulia (H. Wendl.) Mich. Möller & Haston 6:402 AFRICAN VIOLET SOCIETY OF AMERICA, INC. (A.V.S.A.)
Streptoglossa Steetz ex F. Muell. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
×Streptolarium D. A. Beadle (Nidularium Lem. × Streptocalyx Beer (=Aechmea Ruiz & Pav.)) = Nidumea L. B. Sm. - BROMELIAD SOCIETY INTERNATIONAL (B.S.I)
×Streptomea E. L. Sm. (Aechmea Ruiz & Pav. × Streptocalyx Beer (=Aechmea Ruiz & Pav.)) = Aechmea Ruiz & Pav. - BROMELIAD SOCIETY INTERNATIONAL (B.S.I)
Streptosolen Miers 6:264 AMERICAN PUBLIC GARDENS ASSOCIATION
Streptothamnus F. Muell. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Strongylodon Vogel 4:496 AMERICAN PUBLIC GARDENS ASSOCIATION
Strophocactus Britton & Rose = Selenicereus (A. Berger) Britton & Rose - EPIPHYLLUM SOCIETY OF AMERICA (ESA) - Cactaceae Juss. Tribe Hylocereeae
Strychnos L. - AMERICAN PUBLIC GARDENS ASSOCIATION
Stryphnodendron Mart. - AMERICAN PUBLIC GARDENS ASSOCIATION
Stuartia L'Hér. (orth. var.) Stewartia L. - AMERICAN PUBLIC GARDENS ASSOCIATION
Stylidium Sw. ex Willd. 6:507 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stylobasiaceae J. Agardh - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stylobasium Desf. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Stylochaeton Lepr. - INTERNATIONAL AROID SOCIETY (I.A.S.)
Stypandra R. Br. 1:127 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Styphelia Sm. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Styrax L. 5:570 AMERICAN PUBLIC GARDENS ASSOCIATION
Sucrea Soderstrom - INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Sundacarpus (J. Buchholz & N. E. Gray) C. N. Page - ROYAL HORTICULTURAL SOCIETY (RHS) - CONIFERS
Sutera Roth 6:301 AMERICAN PUBLIC GARDENS ASSOCIATION
Sutherlandia R. Br. 4:502 AMERICAN PUBLIC GARDENS ASSOCIATION
Swainsona Salisb. 4:501 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Swallenochloa McClure - INTERNATIONAL CULTIVAR REGISTRATION CENTER FOR BAMBOOS (POACEAE, TRIBE BAMBUSEAE)
Swietenia Jacq. 5:118 AMERICAN PUBLIC GARDENS ASSOCIATION
Sycoparrotia Endress & Anliker (Parrotia C. A. Mey. × Sycopsis Oliv.) 4:170 AMERICAN PUBLIC GARDENS ASSOCIATION
Sycopsis Oliv. 4:170 AMERICAN PUBLIC GARDENS ASSOCIATION
Symphionema R. Br. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Symphonia L. f. - AMERICAN PUBLIC GARDENS ASSOCIATION
Symphoricarpos Duhamel 6:429 AMERICAN PUBLIC GARDENS ASSOCIATION
Symplocarpus Salisb. ex W. P. C. Barton 2:89 INTERNATIONAL AROID SOCIETY (I.A.S.)
Symplocos Jacq. 5:573 AMERICAN PUBLIC GARDENS ASSOCIATION
Synandrospadix Engl. 2:104 INTERNATIONAL AROID SOCIETY (I.A.S.)
Synaphea R. Br. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Synaptantha Hook. f. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Syncarpia Ten. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Syngonium Schott 2:103 INTERNATIONAL AROID SOCIETY (I.A.S.)
Synima Radlk. - AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)
Synnotia Sweet = Sparaxis Ker Gawl. 1:388 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Synoum A. Juss. - AMERICAN PUBLIC GARDENS ASSOCIATION
Synsepalum (A. DC.) Daniell 5:569 AMERICAN PUBLIC GARDENS ASSOCIATION
Sypharissa Salisb. - ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Syringa L. 5:580 ROYAL BOTANICAL GARDENS (CANADA)
Syringodea Hook. 1:369 ROYAL GENERAL BULBGROWERS' ASSOCIATION (K.A.V.B.)
Syzygium R. Br. ex Gaertn. 5:305 AUSTRALIAN CULTIVAR REGISTRATION AUTHORITY (ACRA)

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