| Common Name | Scientific Name | Code |
| n/a | Lonicera ?heckrottii Rehd. [?americana ? sempervirens] | LOHE6 |
| n/a | Lonicera ?minutiflora Zabel [morrowii ? xylosteoides] | LOMI5 |
| n/a | Lonicera ?notha Zabel [ruprechtiana ? tatarica] | LONO |
| n/a | Lonicera ?salicifolia Dieck ex Zabel [ruprechtiana ? xylosteoides] | LOSA8 |
| n/a | Lonicera caerulea L. var. altaica Pall. | LOCAA |
| n/a | Lonicera caerulea L. var. dependens (Regel ex Dippel) Rehder | LOCAD3 |
| n/a | Lonicera caerulea L. var. edulis Turcz. ex Herder | LOCAE |
| n/a | Lonicera chrysantha Turcz. ex Ledeb. | LOCH5 |
| n/a | Lonicera chrysantha Turcz. ex Ledeb. var. chrysantha | LOCHC |
| n/a | Lonicera demissa Rehder | LODE4 |
| n/a | Lonicera ferdinandi Franch. | LOFE4 |
| n/a | Lonicera floribunda Boiss. & Buhse | LOFL6 |
| n/a | Lonicera gracilipes Miq. | LOGR9 |
| n/a | Lonicera henryi Hemsl. | LOHE4 |
| n/a | Lonicera heterophylla Decne. | LOHE5 |
| n/a | Lonicera korolkowii Stapf var. zabelii (Rehder) Rehder | LOKOZ2 |
| n/a | Lonicera maackii (Rupr.) Herder | LOMAE2 |
| n/a | Lonicera maximowiczii (Rupr. ex Maxim.) Maxim. | LOMA11 |
| n/a | Lonicera nervosa Maxim. | LONE7 |
| n/a | Lonicera praeflorens Batalin | LOPR4 |
| n/a | Lonicera saccata Rehder | LOSA7 |
| n/a | Lonicera tatarica L. var. micrantha Trautv. | LOTAM |
| n/a | Lonicera tatsienensis Franch. | LOTA2 |
| n/a | Sambucus africana Standl. | SAAF |
| n/a | Sambucus palmensis Link | SAPA34 |
| n/a | Sambucus racemosa L. ssp. kamtschatica (E. L. Wolf) Hulten | SARAK |
| n/a | Sambucus racemosa L. ssp. sibirica (Nakai) H. Hara | SARAS |
| n/a | Sambucus racemosa L. ssp. sieboldiana (Miq.) H. Hara | SARAS2 |
| n/a | Viburnum ?burkwoodii Burkwood & Skipw. [excluded] | VIBU4 |
| n/a | Viburnum ?jackii Rehd. [excluded] | VIJA3 |
| n/a | Viburnum ?rhytidophylloides Sur. [lantana ? rhytidophyllum] | VIRH3 |
| n/a | Viburnum burejaeticum Regel & Herder | VIBU2 |
| n/a | Viburnum carlesii Hemsl. | VICA19 |
| n/a | Viburnum hupehense Rehder | VIHU2 |
| n/a | Viburnum japonicum (Thunb.) Spreng. | VIJA2 |
| n/a | Viburnum lantana L. var. glabratum Chabert | VILAG |
| n/a | Viburnum odoratissimum Ker-Gawl. [excluded] | VIOD3 |
| n/a | Viburnum opulus L. var. sargentii (Koehne) Takeda | VIOPS |
| n/a | Viburnum schensianum Maxim. | VISC3 |
| n/a | Weigela japonica Thunb. [excluded] | WEJA2 |
| abelia | Abelia R. Br. | ABELI |
| alpine honeysuckle | Lonicera alpigena L. | LOAL5 |
| American cranberrybush | Viburnum opulus L. var. americanum Ait. | VIOPA2 |
| American fly honeysuckle | Lonicera canadensis Bartr. ex Marsh. | LOCA7 |
| Amur honeysuckle | Lonicera maackii (Rupr.) Herder | LOMA6 |
| Arizona honeysuckle | Lonicera arizonica Rehd. | LOAR |
| beautybush | Kolkwitzia amabilis Graebn. | KOAM80 |
| black elderberry | Sambucus racemosa L. var. melanocarpa (Gray) McMinn | SARAM4 |
| blackhaw | Viburnum prunifolium L. | VIPR |
| blue elder | Sambucus nigra L. ssp. caerulea (Raf.) R. Bolli | SANIC6 |
| bluefly honeysuckle | Lonicera caerulea L. var. cauriana (Fern.) Boivin | LOCAC3 |
| blueleaf honeysuckle | Lonicera korolkowii Stapf | LOKO2 |
| box honeysuckle | Lonicera nitida E.H. Wilson | LONI5 |
| bracted arrowwood | Viburnum bracteatum Rehd. | VIBR2 |
| buddlejaleaf viburnum | Viburnum buddleifolium C. Wright | VIBU3 |
| bush honeysuckle | Diervilla P. Mill. | DIERV |
| chaparral honeysuckle | Lonicera interrupta Benth. | LOIN4 |
| Chenault coralberry | Symphoricarpos ?chenaultii Rehder | SYCH2 |
| common elderberry | Sambucus nigra L. ssp. canadensis (L.) R. Bolli | SANIC4 |
| common snowberry | Symphoricarpos albus (L.) Blake | SYAL |
| common snowberry | Symphoricarpos albus (L.) Blake var. albus | SYALA |
| common snowberry | Symphoricarpos albus (L.) Blake var. laevigatus (Fern.) Blake | SYALL |
| common viburnum | Viburnum ellipticum Hook. | VIEL |
| coralberry | Symphoricarpos orbiculatus Moench | SYOR |
| creeping snowberry | Symphoricarpos mollis Nutt. | SYMO |
| crimson weigela | Weigela floribunda (Sieb. & Zucc.) K. Koch | WEFL |
| Culver's root | Viburnum farreri Stearn | VIFA4 |
| desert snowberry | Symphoricarpos longiflorus Gray | SYLO |
| Diervilla lonicera | Diervilla diervilla (L.) MacM. | DIDI12 |
| Diervilla lonicera | Diervilla lonicera P. Mill. var. hypomalaca Fern. | DILOH |
| Diervilla rivularis | Diervilla sessilifolia Buckl. var. rivularis (Gattinger) Ahles | DISER |
| downy arrowwood | Viburnum rafinesquianum J.A. Schultes | VIRA |
| dwarf elderberry | Sambucus ebulus L. | SAEB |
| dwarf honeysuckle | Lonicera xylosteum L. | LOXY |
| elderberry | Sambucus L. | SAMBU |
| Etruscan honeysuckle | Lonicera etrusca Santi | LOET |
| European black elderberry | Sambucus nigra L. | SANI4 |
| European black elderberry | Sambucus nigra L. ssp. nigra | SANIN2 |
| European cranberrybush | Viburnum opulus L. | VIOP |
| European cranberrybush | Viburnum opulus L. var. opulus | VIOPO |
| European honeysuckle | Lonicera periclymenum L. | LOPE4 |
| feverwort | Triosteum perfoliatum L. | TRPE5 |
| fly honeysuckle | Lonicera ?xylosteoides Tausch [tatarica ? xylosteum] | LOXY2 |
| Fuller's honeysuckle | Lonicera villosa (Michx.) J.A. Schultes var. fulleri Fern. | LOVIF |
| glossy abelia | Abelia ?grandiflora (Rovelli ex Andr?) Rehd. [chinensis ? uniflora] | ABGR4 |
| grape honeysuckle | Lonicera reticulata Raf. | LORE5 |
| hairy honeysuckle | Lonicera hirsuta Eat. | LOHI |
| Himalayan honeysuckle | Leycesteria formosa Wallich | LEFO2 |
| hobblebush | Viburnum lantanoides Michx. | VILA11 |
| honeysuckle | Lonicera L. | LONIC |
| horse-gentian | Triosteum L. | TRIOS |
| Illinois horse-gentian | Triosteum aurantiacum Bickn. var. illinoense (Wieg.) Palmer & Steyermark | TRAUI |
| Italian woodbine | Lonicera caprifolium L. | LOCA8 |
| Japanese honeysuckle | Lonicera japonica Thunb. | LOJA |
| Japanese snowball | Viburnum plicatum Thunb. | VIPL |
| Johnston's honeysuckle | Lonicera subspicata Hook. & Arn. var. johnstonii Keck | LOSUJ |
| kolkwitzia | Kolkwitzia Graebn. | KOLKW |
| late honeysuckle | Lonicera maackii (Rupr.) Herder | LOMAP2 |
| laurustinus | Viburnum tinus L. | VITI2 |
| leatherleaf arrowwood | Viburnum rhytidophyllum Hemsl. | VIRH |
| leycesteria | Leycesteria Wallich | LEYCE |
| limber honeysuckle | Lonicera dioica L. | LODI2 |
| linden arrowwood | Viburnum dilatatum Thunb. | VIDI80 |
| Linnaea borealis ssp. americana | Linnaea americana Forbes | LIAM5 |
| Linnaea borealis ssp. americana | Linnaea borealis L. var. americana (Forbes) Rehd. | LIBOA2 |
| Linnaea borealis ssp. longiflora | Linnaea borealis L. var. longiflora Torr. | LIBOL |
| longtube twinflower | Linnaea borealis L. ssp. longiflora (Torr.) Hult | LIBOL2 |
| Lonicera ?bella | Lonicera ?bella Zabel | LOBEA2 |
| Lonicera ?minutiflora | Lonicera ?muendeniensis Rehd. | LOMU2 |
| Lonicera albiflora | Lonicera albiflora Torr. & Gray var. dumosa (Gray) Rehd. | LOALD |
| Lonicera albiflora | Lonicera dumosa Gray | LODU4 |
| Lonicera caerulea | Lonicera caerulea L. var. glabrescens auct. | LOCAG4 |
| Lonicera caerulea var. cauriana | Lonicera cauriana Fern. | LOCA9 |
| Lonicera caerulea var. edulis | Lonicera caerulea L. var. emphyllocalyx (Maxim.) Nakai | LOCAE2 |
| Lonicera caerulea var. edulis | Lonicera edulis (Turcz. ex Herder) Turcz. ex Freyn | LOED2 |
| Lonicera canadensis | Xylosteon ciliatum Pursh | XYCI |
| Lonicera chrysantha var. chrysantha | Lonicera chrysantha Turcz. ex Ledeb. var. longipes Maxim. | LOCHL |
| Lonicera chrysantha var. chrysantha | Lonicera gibbiflora Maxim. ex Rehder | LOGI |
| Lonicera dioica | Lonicera dioica L. var. dasygyna (Rehd.) Gleason | LODID |
| Lonicera dioica | Lonicera dioica L. var. glaucescens (Rydb.) Butters | LODIG |
| Lonicera dioica | Lonicera dioica L. var. orientalis Gleason | LODIO |
| Lonicera dioica | Lonicera glaucescens (Rydb.) Rydb. | LOGL6 |
| Lonicera dioica | Lonicera glaucescens (Rydb.) Rydb. var. dasygyna Rehd. | LOGLD |
| Lonicera flava | Lonicera flava Sims var. flavescens Gleason | LOFLF |
| Lonicera flava | Lonicera flavida Cockerell ex Rehd. | LOFL4 |
| Lonicera fragrantissima | Xylosteon fragrantissimum (Lindl. & Paxton) Small | XYFR |
| Lonicera hirsuta | Lonicera hirsuta Eat. var. interior Gleason | LOHII |
| Lonicera hirsuta | Lonicera hirsuta Eat. var. schindleri Boivin | LOHIS |
| Lonicera involucrata var. involucrata | Distegia involucrata (Banks ex Spreng.) Cockerell | DIIN5 |
| Lonicera involucrata var. involucrata | Lonicera involucrata (Richards.) Banks ex Spreng. var. flavescens (Dippel) Rehd. | LOINF |
| Lonicera involucrata var. involucrata | Xylosteum involucratum Richards. | XYIN |
| Lonicera involucrata var. ledebourii | Lonicera ledebourii Eschsch. | LOLE4 |
| Lonicera japonica | Lonicera japonica Thunb. var. aureo-reticulata (T. Moore) G. Nicholson | LOJAA2 |
| Lonicera japonica | Lonicera japonica Thunb. var. chinensis (P.W. Wats.) Baker | LOJAC |
| Lonicera japonica | Nintooa japonica (Thunb.) Sweet | NIJA |
| Lonicera korolkowii | Lonicera korolkowii Stapf var. floribunda G. Nicholson | LOKOF2 |
| Lonicera morrowii | Lonicera insularis Nakai | LOIN9 |
| Lonicera nitida | Lonicera pileata Oliv. | LOPIY |
| Lonicera oblongifolia | Lonicera oblongifolia (Goldie) Hook. var. altissima (Jennings) Rehd. | LOOBA |
| Lonicera reticulata | Lonicera prolifera (Kirchn.) Booth ex Rehd. | LOPR2 |
| Lonicera reticulata | Lonicera prolifera (Kirchn.) Booth ex Rehd. var. glabra Gleason | LOPRG |
| Lonicera reticulata | Lonicera sullivantii Gray | LOSU5 |
| Lonicera ruprechtiana | Lonicera ?muscaviensis Rehd. | LOMU3 |
| Lonicera saccata | Lonicera penduliflora Pax & K. Hoffm. | LOPE7 |
| Lonicera sempervirens | Lonicera sempervirens L. var. hirsutula Rehd. | LOSEH |
| Lonicera sempervirens | Lonicera sempervirens L. var. minor Ait. | LOSEM |
| Lonicera sempervirens | Lonicera sempervirens L. var. sempervirens L. [superfluous autonym] | LOSES |
| Lonicera sempervirens | Phenianthus sempervirens (L.) Raf. | PHSE6 |
| Lonicera subspicata var. johnstonii | Lonicera johnstonii (Keck) McMinn | LOJO2 |
| Lonicera tatarica | Lonicera sibirica Georgi, nom. nud. [anomalous] | LOSI3 |
| Lonicera tatarica | Lonicera tatarica L. var. latifolia Loudon | LOTAL |
| Lonicera tatarica var. micrantha | Lonicera micrantha (Trautv.) Regel | LOMI6 |
| Lonicera villosa var. villosa | Lonicera caerulea L. var. villosa (Michx.) Torr. & Gray | LOCAV |
| Manchurian honeysuckle | Lonicera ruprechtiana Regel | LORU3 |
| mapleleaf viburnum | Viburnum acerifolium L. | VIAC |
| McKittrick's snowberry | Symphoricarpos guadalupensis Correll | SYGU |
| Mexican arrowwood | Viburnum australe Morton | VIAU |
| Morrow's honeysuckle | Lonicera morrowii Gray | LOMO2 |
| mountain bush honeysuckle | Diervilla rivularis Gattinger | DIRI |
| mountain fly honeysuckle | Lonicera villosa (Michx.) J.A. Schultes | LOVI |
| mountain fly honeysuckle | Lonicera villosa (Michx.) J.A. Schultes var. calvescens (Fern. & Wieg.) Fern. | LOVIC |
| mountain fly honeysuckle | Lonicera villosa (Michx.) J.A. Schultes var. solonis (Eat.) Fern. | LOVIS |
| mountain fly honeysuckle | Lonicera villosa (Michx.) J.A. Schultes var. tonsa Fern. | LOVIT |
| mountain fly honeysuckle | Lonicera villosa (Michx.) J.A. Schultes var. villosa | LOVIV |
| mountain snowberry | Symphoricarpos oreophilus Gray | SYOR2 |
| mountain snowberry | Symphoricarpos oreophilus Gray var. oreophilus | SYORO |
| nannyberry | Viburnum lentago L. | VILE |
| northern bush honeysuckle | Diervilla lonicera P. Mill. | DILO |
| oldfashioned weigela | Weigela florida (Bunge) A. DC. | WEFL2 |
| orange honeysuckle | Lonicera ciliosa (Pursh) Poir. ex DC. | LOCI3 |
| orangefruit horse-gentian | Triosteum aurantiacum Bickn. | TRAU4 |
| orangefruit horse-gentian | Triosteum aurantiacum Bickn. var. aurantiacum | TRAUA |
| orangefruit horse-gentian | Triosteum aurantiacum Bickn. var. glaucescens Wieg. | TRAUG |
| Palmer's snowberry | Symphoricarpos palmeri G.N. Jones | SYPA |
| Parish's snowberry | Symphoricarpos rotundifolius Gray var. parishii (Rydb.) Dempster | SYROP |
| pink honeysuckle | Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray | LOHI2 |
| pink honeysuckle | Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray var. hispidula | LOHIH |
| pink honeysuckle | Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray var. vacillans Gray | LOHIV |
| pink snowberry | Symphoricarpos microphyllus Kunth | SYMI2 |
| possumhaw | Viburnum nudum L. | VINU |
| possumhaw | Viburnum nudum L. var. nudum | VINUN |
| privet honeysuckle | Lonicera pileata Oliv. | LOPI4 |
| purpleflower honeysuckle | Lonicera conjugialis Kellogg | LOCO5 |
| red elderberry | Sambucus racemosa L. | SARA2 |
| red elderberry | Sambucus racemosa L. var. racemosa | SARAR3 |
| roundleaf snowberry | Symphoricarpos rotundifolius Gray | SYRO |
| roundleaf snowberry | Symphoricarpos rotundifolius Gray var. rotundifolius | SYROR |
| rusty blackhaw | Viburnum rufidulum Raf. | VIRU |
| Sambucus nigra ssp. caerulea | Sambucus caerulea Raf. | SACA52 |
| Sambucus nigra ssp. caerulea | Sambucus caerulea Raf. var. neomexicana (Woot.) Rehd. | SACAN4 |
| Sambucus nigra ssp. caerulea | Sambucus caerulea Raf. var. velutina (Dur. & Hilg.) Schwerin | SACAV |
| Sambucus nigra ssp. caerulea | Sambucus cerulea Raf. var. neomexicana (Woot.) Rehder [orthographic variant] | SACEN |
| Sambucus nigra ssp. caerulea | Sambucus cerulea Raf. var. velutina (Dur. & Hilg.) Schwerin [orthographic variant] | SACEV |
| Sambucus nigra ssp. caerulea | Sambucus cerulea Raf. [orthographic variant] | SACE3 |
| Sambucus nigra ssp. caerulea | Sambucus glauca Nutt. | SAGL14 |
| Sambucus nigra ssp. caerulea | Sambucus mexicana K. Presl ex DC. ssp. caerulea (Raf.) E. Murr. | SAMEC3 |
| Sambucus nigra ssp. caerulea | Sambucus mexicana K. Presl ex DC. ssp. cerulea (Raf.) E. Murr. [orthographic variant] | SAMEC |
| Sambucus nigra ssp. caerulea | Sambucus mexicana K. Presl ex DC. var. caerulea (Raf.) E. Murr. | SAMEC4 |
| Sambucus nigra ssp. caerulea | Sambucus mexicana K. Presl ex DC. var. cerulea (Raf.) E. Murr. [orthographic variant] | SAMEC2 |
| Sambucus nigra ssp. caerulea | Sambucus neomexicana Woot. | SANE2 |
| Sambucus nigra ssp. caerulea | Sambucus neomexicana Woot. var. vestita (Woot. & Standl.) Kearney & Peebles | SANEV |
| Sambucus nigra ssp. caerulea | Sambucus nigra L. ssp. cerulea (Raf.) R. Bolli [orthographic variant] | SANIC5 |
| Sambucus nigra ssp. caerulea | Sambucus velutina Dur. & Hilg. | SAVE3 |
| Sambucus nigra ssp. canadensis | Sambucus caerulea Raf. var. mexicana (K. Presl ex DC.) L. Benson | SACAM4 |
| Sambucus nigra ssp. canadensis | Sambucus canadensis L. | SACA12 |
| Sambucus nigra ssp. canadensis | Sambucus canadensis L. var. laciniata Gray | SACAL2 |
| Sambucus nigra ssp. canadensis | Sambucus canadensis L. var. submollis Rehd. | SACAS2 |
| Sambucus nigra ssp. canadensis | Sambucus cerulea Raf. var. mexicana (K. Presl ex DC.) L. Benson [orthographic variant] | SACEM3 |
| Sambucus nigra ssp. canadensis | Sambucus mexicana K. Presl ex DC. | SAME5 |
| Sambucus nigra ssp. canadensis | Sambucus orbiculata Greene | SAOR5 |
| Sambucus nigra ssp. canadensis | Sambucus simpsonii Rehd. ex Sarg. | SASI3 |
| Sambucus nigra ssp. nigra | Sambucus laciniata P. Mill. ex A. Murr. | SALA19 |
| Sambucus nigra ssp. nigra | Sambucus nigra L. var. laciniata L. | SANIL4 |
| Sambucus racemosa | Sambucus racemosa L. var. laciniata W. D. J. Koch ex DC. | SARAL3 |
| Sambucus racemosa ssp. kamtschatica | Sambucus coreana (Nakai) Kom. & Aliss. | SACO30 |
| Sambucus racemosa ssp. kamtschatica | Sambucus kamtschatica E. L. Wolf | SAKA3 |
| Sambucus racemosa ssp. sibirica | Sambucus sibirica Nakai | SASI17 |
| Sambucus racemosa ssp. sieboldiana | Sambucus sieboldiana (Miq.) Blume ex Graebn. | SASI18 |
| Sambucus racemosa var. melanocarpa | Sambucus melanocarpa Gray | SAME4 |
| Sambucus racemosa var. racemosa | Sambucus callicarpa Greene | SACA11 |
| Sambucus racemosa var. racemosa | Sambucus microbotrys Rydb. | SAMI15 |
| Sambucus racemosa var. racemosa | Sambucus pubens Michx. | SAPU11 |
| Sambucus racemosa var. racemosa | Sambucus pubens Michx. var. arborescens Torr. & Gray | SAPUA |
| Sambucus racemosa var. racemosa | Sambucus racemosa L. ssp. pubens (Michx.) House | SARAP |
| Sambucus racemosa var. racemosa | Sambucus racemosa L. var. arborescens (Torr. & Gray) Gray | SARAA3 |
| Sambucus racemosa var. racemosa | Sambucus racemosa L. var. leucocarpa (Torr. & Gray) Cronq. | SARAL2 |
| Sambucus racemosa var. racemosa | Sambucus racemosa L. var. microbotrys (Rydb.) Kearney & Peebles | SARAM5 |
| Sambucus racemosa var. racemosa | Sambucus racemosa L. var. pubens (Michx.) Koehne | SARAP5 |
| Santa Barbara honeysuckle | Lonicera subspicata Hook. & Arn. var. denudata Rehd. | LOSUD |
| sharpleaf snowberry | Symphoricarpos acutus (Gray) Dieck | SYAC |
| showy fly honeysuckle | Lonicera ?bella Zabel [morrowii ? tatarica] | LOBE |
| Siebold's arrowwood | Viburnum sieboldii Miq. | VISI |
| small-leaf arrowwood | Viburnum obovatum Walt. | VIOB |
| snowberry | Symphoricarpos Duham. | SYMPH |
| softleaf arrowwood | Viburnum molle Michx. | VIMO |
| southern arrowwood | Viburnum dentatum L. | VIDE |
| southern arrowwood | Viburnum dentatum L. var. dentatum | VIDED4 |
| southern arrowwood | Viburnum dentatum L. var. venosum (Britt.) Gleason | VIDEV |
| southern arrowwood | Viburnum recognitum Fern. | VIRE7 |
| southern bush honeysuckle | Diervilla sessilifolia Buckl. | DISE |
| southern honeysuckle | Lonicera subspicata Hook. & Arn. | LOSU2 |
| southern honeysuckle | Lonicera subspicata Hook. & Arn. var. subspicata | LOSUS |
| squashberry | Viburnum edule (Michx.) Raf. | VIED |
| Standish's honeysuckle | Lonicera standishii Jacques | LOST2 |
| swamp fly honeysuckle | Lonicera oblongifolia (Goldie) Hook. | LOOB |
| sweet breath of spring | Lonicera fragrantissima Lindl. & Paxton | LOFR |
| sweetberry honeysuckle | Lonicera caerulea L. | LOCA6 |
| Symphoricarpos acutus | Symphoricarpos mollis Nutt. var. acutus Gray | SYMOA2 |
| Symphoricarpos albus var. albus | Symphoricarpos albus (L.) Blake var. pauciflorus (W.J. Robins. ex Gray) Blake | SYALP |
| Symphoricarpos albus var. albus | Symphoricarpos pauciflorus W.J. Robins. ex Gray | SYPA3 |
| Symphoricarpos albus var. albus | Symphoricarpos racemosus Michx. | SYRA80 |
| Symphoricarpos albus var. laevigatus | Symphoricarpos albus (L.) Blake ssp. laevigatus (Fern.) Hult | SYALL2 |
| Symphoricarpos albus var. laevigatus | Symphoricarpos rivularis Suksdorf | SYRI2 |
| Symphoricarpos hesperius | Symphoricarpos mollis Nutt. ssp. hesperius (G.N. Jones) Abrams ex Ferris | SYMOH2 |
| Symphoricarpos hesperius | Symphoricarpos mollis Nutt. var. hesperius (G.N. Jones) Cronq. | SYMOH |
| Symphoricarpos mollis | Symphoricarpos albus (L.) Blake var. mollis (Nutt.) Keck | SYALM |
| Symphoricarpos orbiculatus | Symphoricarpos symphoricarpos (L.) MacM. | SYSY |
| Symphoricarpos oreophilus var. oreophilus | Symphoricarpos rotundifolius Gray var. oreophilus (Gray) M.E. Jones | SYROO |
| Symphoricarpos oreophilus var. utahensis | Symphoricarpos tetonensis A. Nels. | SYTE2 |
| Symphoricarpos oreophilus var. utahensis | Symphoricarpos utahensis Rydb. | SYUT |
| Symphoricarpos oreophilus var. utahensis | Symphoricarpos vaccinioides Rydb. | SYVA |
| Symphoricarpos rotundifolius var. parishii | Symphoricarpos oreophilus Gray var. parishii (Rydb.) Cronq. | SYORP |
| Symphoricarpos rotundifolius var. parishii | Symphoricarpos parishii Rydb. | SYPA2 |
| Tatarian honeysuckle | Lonicera tatarica L. | LOTA |
| tea viburnum | Viburnum setigerum Hance | VISE14 |
| trailing snowberry | Symphoricarpos hesperius G.N. Jones | SYHE |
| Triosteum angustifolium | Triosteum angustifolium L. var. eamesii Wieg. | TRANE |
| Triosteum aurantiacum var. aurantiacum | Triosteum perfoliatum L. var. aurantiacum (Bickn.) Wieg. | TRPEA |
| Triosteum aurantiacum var. glaucescens | Triosteum perfoliatum L. var. glaucescens (Wieg.) Wieg. | TRPEG |
| Triosteum aurantiacum var. illinoense | Triosteum illinoense (Wieg.) Rydb. | TRIL |
| Triosteum aurantiacum var. illinoense | Triosteum perfoliatum L. var. illinoense Wieg. | TRPEI |
| trumpet honeysuckle | Lonicera sempervirens L. | LOSE |
| twinberry honeysuckle | Lonicera involucrata (Richards.) Banks ex Spreng. | LOIN5 |
| twinberry honeysuckle | Lonicera involucrata (Richards.) Banks ex Spreng. var. involucrata | LOINI |
| twinberry honeysuckle | Lonicera involucrata (Richards.) Banks ex Spreng. var. ledebourii (Eschsch.) Zabel | LOINL |
| twinflower | Linnaea borealis L. | LIBO3 |
| twinflower | Linnaea borealis L. ssp. americana (Forbes) Hult?n ex Clausen | LIBOA |
| twinflower | Linnaea L. | LINNA |
| Utah honeysuckle | Lonicera utahensis S. Wats. | LOUT2 |
| Utah snowberry | Symphoricarpos oreophilus Gray var. utahensis (Rydb.) A. Nels. | SYORU |
| viburnum | Viburnum L. | VIBUR |
| viburnum | Viburnum suspensum Lindl. | VISU3 |
| Viburnum acerifolium | Viburnum acerifolium L. var. acerifolium L. [superfluous autonym] | VIACA |
| Viburnum acerifolium | Viburnum acerifolium L. var. densiflorum (Chapman) McAtee | VIACD |
| Viburnum acerifolium | Viburnum acerifolium L. var. glabrescens Rehd. | VIACG |
| Viburnum acerifolium | Viburnum acerifolium L. var. ovatum (Rehd.) McAtee | VIACO |
| Viburnum acerifolium | Viburnum densiflorum Chapman | VIDE4 |
| Viburnum australe | Viburnum affine Bush ex Schneid. var. australe (Morton) McAtee | VIAFA |
| Viburnum dentatum var. dentatum | Viburnum carolinianum Ashe | VICA11 |
| Viburnum dentatum var. dentatum | Viburnum carolinianum Ashe var. cismontanum McAtee | VICAC4 |
| Viburnum dentatum var. dentatum | Viburnum carolinianum Ashe var. deamii (Rehd.) McAtee | VICAD |
| Viburnum dentatum var. dentatum | Viburnum crenatum McAtee | VICR2 |
| Viburnum dentatum var. dentatum | Viburnum dentatum L. var. deamii (Rehd.) Fern. | VIDED |
| Viburnum dentatum var. dentatum | Viburnum dentatum L. var. indianense (Rehd.) Gleason | VIDEI |
| Viburnum dentatum var. dentatum | Viburnum dentatum L. var. scabrellum Torr. & Gray | VIDES |
| Viburnum dentatum var. dentatum | Viburnum dentatum L. var. semitomentosum Michx. | VIDES2 |
| Viburnum dentatum var. dentatum | Viburnum indianense (Rehd.) Rehd. ex McAtee | VIIN7 |
| Viburnum dentatum var. dentatum | Viburnum pubescens (Ait.) Pursh | VIPU7 |
| Viburnum dentatum var. dentatum | Viburnum pubescens (Ait.) Pursh var. deamii Rehd. | VIPUD2 |
| Viburnum dentatum var. dentatum | Viburnum pubescens (Ait.) Pursh var. indianense Rehd. | VIPUI2 |
| Viburnum dentatum var. dentatum | Viburnum scabrellum Torr. & Gray ex Chapman | VISC |
| Viburnum dentatum var. dentatum | Viburnum scabrellum Torr. & Gray ex Chapman var. dilutum McAtee | VISCD |
| Viburnum dentatum var. dentatum | Viburnum semitomentosum (Michx.) Rehd. | VISE7 |
| Viburnum dentatum var. venosum | Viburnum scabrellum Torr. & Gray ex Chapman var. venosum (Britt.) McAtee | VISCV |
| Viburnum dentatum var. venosum | Viburnum venosum Britt. | VIVE2 |
| Viburnum edule | Viburnum pauciflorum La Pylaie ex Torr. & Gray | VIPA11 |
| Viburnum ellipticum | Viburnum ellipticum Hook. var. macrocarpum Suksdorf | VIELM |
| Viburnum farreri | Viburnum fragrans Bunge | VIFR3 |
| Viburnum lantana | Viburnum lantana L. var. sphaerocarpum Gray ex Fern. | VILAS |
| Viburnum lantanoides | Viburnum alnifolium Marsh. | VIAL3 |
| Viburnum lantanoides | Viburnum grandifolium Ait. | VIGR8 |
| Viburnum lentago | Viburnum ?vetteri Zabel | VIVE4 |
| Viburnum molle | Viburnum ozarkense Ashe | VIOZ |
| Viburnum nudum var. cassinoides | Viburnum cassinoides L. | VICA |
| Viburnum nudum var. cassinoides | Viburnum cassinoides L. var. harbisonii McAtee | VICAH |
| Viburnum nudum var. cassinoides | Viburnum cassinoides L. var. nitidum (Ait.) McAtee | VICAN |
| Viburnum nudum var. cassinoides | Viburnum nitidum Ait. | VINI2 |
| Viburnum nudum var. nudum | Viburnum cassinoides L. var. angustifolium (Torr. & Gray) Shinners | VICAA |
| Viburnum nudum var. nudum | Viburnum nudum L. var. angustifolium Torr. & Gray | VINUA |
| Viburnum nudum var. nudum | Viburnum nudum L. var. grandifolium Gray | VINUG |
| Viburnum nudum var. nudum | Viburnum nudum L. var. ovale Wood | VINUO |
| Viburnum nudum var. nudum | Viburnum nudum L. var. serotinum Ravenal ex Chapman | VINUS |
| Viburnum obovatum | Viburnum nashii Small | VINA3 |
| Viburnum opulus var. americanum | Viburnum opulus L. ssp. trilobum (Marsh.) Clausen | VIOPT2 |
| Viburnum opulus var. americanum | Viburnum trilobum Marsh. | VITR8 |
| Viburnum opulus var. opulus | Viburnum opulus L. var. roseum L. | VIOPR |
| Viburnum opulus var. opulus | Viburnum roseum (L.) Steud. | VIRO7 |
| Viburnum opulus var. sargentii | Viburnum opulus L. var. calvescens (Rehder) H. Hara | VIOPC |
| Viburnum opulus var. sargentii | Viburnum sargentii Koehne var. calvescens Rehder | VISAC |
| Viburnum opulus var. sargentii | Viburnum sargentii Koehne [excluded] | VISA6 |
| Viburnum plicatum | Viburnum plicatum Thunb. var. tomentosum (Thunb.) Miq. | VIPLT |
| Viburnum plicatum | Viburnum tomentosum Thunb. | VITO2 |
| Viburnum prunifolium | Viburnum bushii Ashe | VIBU |
| Viburnum prunifolium | Viburnum prunifolium L. var. bushii (Ashe) Palmer & Steyermark | VIPRB |
| Viburnum prunifolium | Viburnum prunifolium L. var. globosum Nash ex Schneid. | VIPRG |
| Viburnum rafinesquianum | Viburnum affine Bush ex Schneid. | VIAF |
| Viburnum rafinesquianum | Viburnum affine Bush ex Schneid. var. hypomalacum Blake | VIAFH |
| Viburnum rafinesquianum | Viburnum rafinesquianum J.A. Schultes var. affine (Bush ex Schneid.) House | VIRAA |
| Viburnum rafinesquianum | Viburnum rafinesquianum J.A. Schultes var. rafinesquianum J.A. Schultes [superfluous autonym] | VIRAR |
| Viburnum recognitum | Viburnum ashei Bush | VIAS4 |
| Viburnum recognitum | Viburnum ashii Bush [orthographic variant] | VIAS |
| Viburnum recognitum | Viburnum dentatum L. var. ashei (Bush) McAtee | VIDEA |
| Viburnum recognitum | Viburnum dentatum L. var. lucidum Ait. | VIDEL |
| Viburnum recognitum | Viburnum recognitum Fern. var. alabamense McAtee | VIREA |
| Viburnum rufidulum | Viburnum prunifolium L. var. ferrugineum Torr. & Gray | VIPRF2 |
| Viburnum rufidulum | Viburnum rufidulum Raf. var. margarettiae Ashe | VIRUM |
| Viburnum rufidulum | Viburnum rufotomentosum Small | VIRU4 |
| wayfaringtree | Viburnum lantana L. | VILA |
| weigela | Weigela Thunb. | WEIGE |
| Weigela | Weigelia Schreb. [orthographic error] | WEIGE2 |
| Weigela florida | Diervilla florida (Bunge) Sieb. & Zucc. | DIFL7 |
| western snowberry | Symphoricarpos occidentalis Hook. | SYOC |
| western white honeysuckle | Lonicera albiflora Torr. & Gray | LOAL |
| withe-rod | Viburnum nudum L. var. cassinoides (L.) Torr. & Gray | VINUC |
| yellow honeysuckle | Lonicera flava Sims | LOFL |
| yellowfruit horse-gentian | Triosteum angustifolium L. | TRAN3 |