| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| VIPUX | Viola purpurea Kellogg ssp. xerophyta M.S. Baker & J.C. Clausen | Viola pinetorum ssp. pinetorum | Violaceae
|
| VIPUA4 | Viola purpurea Kellogg var. atriplicifolia (Greene) M.E. Peck | Viola purpurea ssp. venosa | Violaceae
|
| VIPUA | Viola purpurea Kellogg var. aurea (Kellogg) M.S. Baker ex Jepson | Viola aurea | Violaceae
|
| VIPUC | Viola purpurea Kellogg var. charlestonensis (M.S. Baker & J.C. Clausen ex Clokey) Welsh & Reveal | Viola charlestonensis | Violaceae
|
| VIPUG2 | Viola purpurea Kellogg var. grisea Jepson | Viola pinetorum ssp. grisea | Violaceae
|
| VIPUP4 | Viola purpurea Kellogg var. pinetorum (Greene) Greene | Viola pinetorum ssp. pinetorum | Violaceae
|
| VIPUV | Viola purpurea Kellogg var. venosa (S. Wats.) Brainerd | Viola purpurea ssp. venosa | Violaceae
|
| VIPU4 | Viola purpurea Kellogg | goosefoot violet | Violaceae
|
| VIQU | Viola quercetorum M.S. Baker & J.C. Clausen | Viola purpurea ssp. quercetorum | Violaceae
|
| VIRA5 | Viola rafinesquei Greene | Viola bicolor | Violaceae
|
| VIRA3 | Viola �ravida House | | Violaceae
|
| VIRE6 | Viola �redacta House | | Violaceae
|
| VIREB | Viola renifolia Gray var. brainerdii (Greene) Fern. | Viola renifolia | Violaceae
|
| VIRE2 | Viola renifolia Gray | white violet | Violaceae
|
| VIRE11 | Viola repens Turcz. ex Trautv. & C.A. Mey., nom. | Viola epipsila ssp. repens | Violaceae
|
| VIRE9 | Viola retusa Greene | Viola nephrophylla | Violaceae
|
| VIRO4 | Viola �robinsoniana House | Viola mistura | Violaceae
|
| VIRO5 | Viola robusta Hbd. | Viola chamissoniana ssp. robusta | Violaceae
|
| VIRO8 | Viola rosacea Brainerd | Viola affinis | Violaceae
|
| VIRO | Viola rostrata Pursh | longspur violet | Violaceae
|
| VIRO2 | Viola rotundifolia Michx. | roundleaf yellow violet | Violaceae
|
| VIRU3 | Viola rugosa Small | Viola villosa | Violaceae
|
| VIRU7 | Viola rugulosa Greene | Viola canadensis var. rugulosa | Violaceae
|
| VIRU5 | Viola russellii Boivin | Viola vallicola var. vallicola | Violaceae
|
| VIRY3 | Viola rydbergii Greene | Viola canadensis var. canadensis | Violaceae
|
| VIRY | Viola �ryoniae House | | Violaceae
|
| VISAO | Viola sagittata Ait. var. ovata (Nutt.) Torr. & Gray | arrowleaf violet | Violaceae
|
| VISAS5 | Viola sagittata Ait. var. sagittata | arrowleaf violet | Violaceae
|
| VISAS | Viola sagittata Ait. var. subsagittata (Greene) Pollard | Viola sagittata var. sagittata | Violaceae
|
| VISA2 | Viola sagittata Ait. | arrowleaf violet | Violaceae
|
| VISA5 | Viola sarmentosa Dougl. ex Hook. | Viola sempervirens | Violaceae
|
| VISC6 | Viola scopulorum (Gray) Greene | Viola canadensis var. scopulorum | Violaceae
|
| VISE2 | Viola selkirkii Pursh ex Goldie | Selkirk's violet | Violaceae
|
| VISEO | Viola sempervirens Greene var. orbiculata (Geyer ex Holz.) J.K. Henry | Viola orbiculata | Violaceae
|
| VISEO2 | Viola sempervirens Greene var. orbiculoides M.S. Baker | Viola orbiculata | Violaceae
|
| VISE3 | Viola sempervirens Greene | evergreen violet | Violaceae
|
| VISEE | Viola septemloba Le Conte ssp. egglestonii (Brainerd) McKinney | Viola egglestonii | Violaceae
|
| VISE4 | Viola septemloba Le Conte | southern coastal violet | Violaceae
|
| VISEG | Viola septentrionalis Greene var. grisea Fern. | Viola novae-angliae | Violaceae
|
| VISE5 | Viola septentrionalis Greene | Viola sororia | Violaceae
|
| VISH | Viola sheltonii Torr. | Shelton's violet | Violaceae
|
| VISI6 | Viola simulata M.S. Baker | Viola langsdorfii | Violaceae
|
| VISL | Viola �slavinii House | | Violaceae
|
| VISOA | Viola sororia Willd. ssp. affinis (Le Conte) R.J. Little | Viola affinis | Violaceae
|
| VISOA2 | Viola sororia Willd. var. affinis (Le Conte) McKinney | Viola affinis | Violaceae
|
| VISOM | Viola sororia Willd. var. missouriensis (Greene) McKinney | Viola affinis | Violaceae
|
| VISON | Viola sororia Willd. var. novae-angliae (House) McKinney | Viola novae-angliae | Violaceae
|
| VISO | Viola sororia Willd. | common blue violet | Violaceae
|
| VIST2 | Viola stoneana House | Viola palmata | Violaceae
|
| VIST3 | Viola striata Ait. | striped cream violet | Violaceae
|
| VISU | Viola �subaffinis House | Viola sororia | Violaceae
|
| VISU2 | Viola sublanceolata House (pro hybr.) | lanceleaf violet | Violaceae
|
| VISU8 | Viola �subsinuata (Greene) Greene (pro sp.) | Viola bernardii | Violaceae
|
| VISU5 | Viola subvestita Greene | Viola adunca var. adunca | Violaceae
|
| VISU9 | Viola superba M.S. Baker | Viola langsdorfii | Violaceae
|
| VITO | Viola tomentosa M.S. Baker & J.C. Clausen | feltleaf violet | Violaceae
|
| VITRO | Viola tracheliifolia Gingins var. olokelensis (Skottsberg) Skottsberg | Viola chamissoniana ssp. tracheliifolia | Violaceae
|
| VITRP | Viola tracheliifolia Gingins var. populifolia Skottsberg | Viola chamissoniana ssp. tracheliifolia | Violaceae
|
| VITR6 | Viola tracheliifolia Gingins | Viola chamissoniana ssp. tracheliifolia | Violaceae
|
| VITRA | Viola tricolor L. var. arvensis (Murr.) Boiss. | Viola arvensis | Violaceae
|
| VITR | Viola tricolor L. | johnny jumpup | Violaceae
|
| VITRD | Viola triloba Schwein. var. dilatata (Ell.) Brainerd | Viola palmata | Violaceae
|
| VITR2 | Viola triloba Schwein. | Viola palmata | Violaceae
|
| VITR3 | Viola trinervata (T.J. Howell) T.J. Howell ex Gray | Rainier violet | Violaceae
|
| VITRG | Viola tripartita Ell. var. glaberrima (DC.) Harper | Viola tripartita | Violaceae
|
| VITR4 | Viola tripartita Ell. | threepart violet | Violaceae
|
| VIUMG | Viola umbraticola Kunth var. glaberrima Becker | Ponderosa violet | Violaceae
|
| VIUM | Viola umbraticola Kunth | Ponderosa violet | Violaceae
|
| VIUT | Viola utahensis M.S. Baker & J.C. Clausen ex Baker | Utah violet | Violaceae
|
| VIVAM | Viola vallicola A. Nels. var. major (Hook.) Fabijan | valley violet | Violaceae
|
| VIVAV | Viola vallicola A. Nels. var. vallicola | sagebrush violet | Violaceae
|
| VIVA | Viola vallicola A. Nels. | sagebrush violet | Violaceae
|
| VIVA3 | Viola variabilis Greene | Viola populifolia | Violaceae
|
| VIVE7 | Viola venosa (S. Wats.) Rydb. | Viola purpurea ssp. venosa | Violaceae
|
| VIVI2 | Viola viarum Pollard | twoflower violet | Violaceae
|
| VIVI3 | Viola villosa Walt. | Carolina violet | Violaceae
|
| VIVI7 | Viola vittata Greene | Viola lanceolata ssp. vittata | Violaceae
|
| VIWA2 | Viola wailenalenae (Rock) Skottsberg | Alakai Swamp violet | Violaceae
|
| VIWA | Viola walteri House | prostrate blue violet | Violaceae
|
| VIWI | Viola �wittrockiana Gams. | | Violaceae
|
| VIWU | Viola �wujekii H.E. Ballard | | Violaceae
|
| VIOLA | Viola L. | violet | Violaceae
|
| VIAD5 | Viorna addisonii (Britt.) Small | Clematis addisonii | Ranunculaceae
|
| VIBA4 | Viorna baldwinii (Torr. & Gray) Small | Clematis baldwinii var. baldwinii | Ranunculaceae
|
| VIBE8 | Viorna beadlei Small | Clematis viorna | Ranunculaceae
|
| VICRW | Viorna crispa (L.) Small var. walteri (Pursh) Small | Clematis crispa | Ranunculaceae
|
| VICR3 | Viorna crispa (L.) Small | Clematis crispa | Ranunculaceae
|
| VIFL4 | Viorna flaccida (Small) Small | Clematis viorna | Ranunculaceae
|
| VIFR | Viorna fremontii (S. Wats.) Heller | Clematis fremontii | Ranunculaceae
|
| VIGA | Viorna gattingeri (Small) Small | Clematis viorna | Ranunculaceae
|
| VIGL3 | Viorna glaucophylla (Small) Small | Clematis glaucophylla | Ranunculaceae
|
| VIOB4 | Viorna obliqua Small | Clematis crispa | Ranunculaceae
|
| VIOC2 | Viorna ochroleuca (Ait.) Small | Clematis ochroleuca | Ranunculaceae
|
| VIOV3 | Viorna ovata (Pursh) Small | Clematis ochroleuca | Ranunculaceae
|
| VIPI | Viorna pitcheri (Torr. & Gray) Britt. | Clematis pitcheri var. pitcheri | Ranunculaceae
|
| VIRE10 | Viorna reticulata (Walt.) Small | Clematis reticulata | Ranunculaceae
|
| VIRI3 | Viorna ridgwayi Standl. | Clematis viorna | Ranunculaceae
|
| VISC2 | Viorna scottii (Porter) Rydb. | Clematis hirsutissima var. scottii | Ranunculaceae
|
| VISU6 | Viorna subreticulata Harbison ex Small | Clematis reticulata | Ranunculaceae
|
| VIVE3 | Viorna versicolor (Small ex Rydb.) Small | Clematis versicolor | Ranunculaceae
|
| VIVI8 | Viorna viorna (L.) Small | Clematis viorna | Ranunculaceae
|