| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| RUUL2 | Rubus ulterior Bailey | Rubus kennedyanus | Rosaceae
|
| RUUN4 | Rubus unanimus Bailey | Rubus vermontanus | Rosaceae
|
| RUUN2 | Rubus uncus Bailey | Rubus apogaeus | Rosaceae
|
| RUUN6 | Rubus uniflorifer Bailey | Rubus baileyanus | Rosaceae
|
| RUUN | Rubus uniformis Bailey | thornless dewberry | Rosaceae
|
| RUUN5 | Rubus uniquus Bailey | Rubus frondosus | Rosaceae
|
| RUUN3 | Rubus univocus Bailey | Rubus wheeleri | Rosaceae
|
| RUUR2 | Rubus urbanianus Bailey | Rubus flagellaris | Rosaceae
|
| RUURM | Rubus ursinus Cham. & Schlecht. ssp. macropetalus (Dougl. ex Hook.) Taylor & MacBryde | California blackberry | Rosaceae
|
| RUURS | Rubus ursinus Cham. & Schlecht. ssp. ursinus var. sirbenus (Bailey) J.T. Howell | California blackberry | Rosaceae
|
| RUURU2 | Rubus ursinus Cham. & Schlecht. ssp. ursinus var. ursinus | California blackberry | Rosaceae
|
| RUURU | Rubus ursinus Cham. & Schlecht. ssp. ursinus | California blackberry | Rosaceae
|
| RUURM2 | Rubus ursinus Cham. & Schlecht. var. macropetalus (Dougl. ex Hook.) S.W. Br. | Rubus ursinus ssp. macropetalus | Rosaceae
|
| RUUR | Rubus ursinus Cham. & Schlecht. | California blackberry | Rosaceae
|
| RUUS | Rubus usus Bailey | Rubus plicatifolius | Rosaceae
|
| RUUV | Rubus uvidus Bailey | Kalamazoo dewberry | Rosaceae
|
| RUVA5 | Rubus vagulus Bailey | Rubus paganus | Rosaceae
|
| RUVA | Rubus vagus Bailey | rambling dewberry | Rosaceae
|
| RUVA4 | Rubus valentulus Bailey | Rubus largus | Rosaceae
|
| RUVA3 | Rubus variispinus Bailey | Vicksburg blackberry | Rosaceae
|
| RUVA2 | Rubus varus Bailey | Rubus plicatifolius | Rosaceae
|
| RUVE7 | Rubus vegrandis Bailey | Rubus permixtus | Rosaceae
|
| RUVE6 | Rubus velox Bailey | fuzzy dewberry | Rosaceae
|
| RUVEO | Rubus vermontanus Blanch. var. ortivus (Bailey) Boivin | Rubus ortivus | Rosaceae
|
| RUVEV | Rubus vermontanus Blanch. var. viridiflorus Blanch. | Rubus vermontanus | Rosaceae
|
| RUVE5 | Rubus vermontanus Blanch. | Vermont blackberry | Rosaceae
|
| RUVE | Rubus vestitus Weihe & Nees | European blackberry | Rosaceae
|
| RUVI10 | Rubus victorinii Bailey | Rubus plicatifolius | Rosaceae
|
| RUVI11 | Rubus vigilis Bailey | | Rosaceae
|
| RUVI3 | Rubus vigoratus Bailey | Essex dewberry | Rosaceae
|
| RUVI7 | Rubus virginianus Bailey | Rubus allegheniensis var. gravesii | Rosaceae
|
| RUVI8 | Rubus viridifrons Bailey | Rubus regionalis | Rosaceae
|
| RUVI6 | Rubus virilis Bailey | Rubus bushii | Rosaceae
|
| RUVIU | Rubus vitifolius Cham. & Schlecht. ssp. ursinus (Cham. & Schlecht.) Abrams | Rubus ursinus ssp. ursinus var. ursinus | Rosaceae
|
| RUVIE | Rubus vitifolius Cham. & Schlecht. var. eastwoodianus (Rydb.) Munz | Pacific dewberry | Rosaceae
|
| RUVIT | Rubus vitifolius Cham. & Schlecht. var. titanus (Bailey) Bailey | Pacific dewberry | Rosaceae
|
| RUVIV | Rubus vitifolius Cham. & Schlecht. var. vitifolius | Pacific dewberry | Rosaceae
|
| RUVI4 | Rubus vitifolius Cham. & Schlecht. | Pacific dewberry | Rosaceae
|
| RUVI5 | Rubus vixalacer Bailey | Rubus fecundus | Rosaceae
|
| RUVI9 | Rubus vixargutus Bailey | Rubus suus | Rosaceae
|
| RUWA | Rubus wahlii Bailey | Rubus frondosus | Rosaceae
|
| RUWH | Rubus whartoniae Bailey | Wharton's dewberry | Rosaceae
|
| RUWH2 | Rubus wheeleri (Bailey) Bailey | Wheeler's blackberry | Rosaceae
|
| RUWI2 | Rubus wiegandii Bailey | Rubus recurvans | Rosaceae
|
| RUWI | Rubus wisconsinensis Bailey | Wisconsin blackberry | Rosaceae
|
| RUZA2 | Rubus zapulutus Bailey | Rubus paganus | Rosaceae
|
| RUZO | Rubus zoae Bailey | Rubus persistens | Rosaceae
|
| RUBUS | Rubus L. | blackberry | Rosaceae
|
| RUAC9 | Rudbeckia acuminata C.L. Boynt. & Beadle | Rudbeckia fulgida var. fulgida | Asteraceae
|
| RUAL16 | Rudbeckia alismifolia Torr. & Gray | Rudbeckia grandiflora var. alismifolia | Asteraceae
|
| RUAL17 | Rudbeckia alpicola Piper | showy coneflower | Asteraceae
|
| RUAM9 | Rudbeckia ampla A. Nels. | Rudbeckia laciniata var. ampla | Asteraceae
|
| RUAM8 | Rudbeckia amplectens T.V. Moore | Rudbeckia hirta var. hirta | Asteraceae
|
| RUAM7 | Rudbeckia amplexicaulis Vahl | Dracopis amplexicaulis | Asteraceae
|
| RUAU2 | Rudbeckia auriculata (Perdue) Kral | eared coneflower | Asteraceae
|
| RUBE10 | Rudbeckia beadlei Small p.p. | Rudbeckia triloba var. rupestris | Asteraceae
|
| RUBI5 | Rudbeckia bicolor Nutt. | pinewoods coneflower | Asteraceae
|
| RUBR11 | Rudbeckia brittonii Small | Rudbeckia hirta var. hirta | Asteraceae
|
| RUCAG | Rudbeckia californica Gray var. glauca Blake | Rudbeckia glaucescens | Asteraceae
|
| RUCAI | Rudbeckia californica Gray var. intermedia Perdue | Rudbeckia klamathensis | Asteraceae
|
| RUCA3 | Rudbeckia californica Gray | California coneflower | Asteraceae
|
| RUCH2 | Rudbeckia chapmanii C.L. Boynt. & Beadle | Rudbeckia fulgida var. umbrosa | Asteraceae
|
| RUCO23 | Rudbeckia columnaris Pursh, non Sims | Ratibida columnifera | Asteraceae
|
| RUCO24 | Rudbeckia columnifera Nutt. | Ratibida columnifera | Asteraceae
|
| RUDE12 | Rudbeckia deamii Blake | Rudbeckia fulgida var. deamii | Asteraceae
|
| RUDI | Rudbeckia divergens T.V. Moore | Rudbeckia hirta var. angustifolia | Asteraceae
|
| RUFLA | Rudbeckia floridana T.V. Moore var. angustifolia T.V. Moore | Rudbeckia hirta var. angustifolia | Asteraceae
|
| RUFL10 | Rudbeckia floridana T.V. Moore | Rudbeckia hirta var. floridana | Asteraceae
|
| RUFO4 | Rudbeckia foliosa C.L. Boynt. & Beadle | Rudbeckia fulgida var. fulgida | Asteraceae
|
| RUFUA | Rudbeckia fulgida Ait. var. auriculata Perdue | Rudbeckia auriculata | Asteraceae
|
| RUFUD | Rudbeckia fulgida Ait. var. deamii (Blake) Perdue | Deam's coneflower | Asteraceae
|
| RUFUF | Rudbeckia fulgida Ait. var. fulgida | orange coneflower | Asteraceae
|
| RUFUM | Rudbeckia fulgida Ait. var. missouriensis (Engelm. ex C.L. Boynt. & Beadle) Cronq. | Rudbeckia missouriensis | Asteraceae
|
| RUFUP | Rudbeckia fulgida Ait. var. palustris (Eggert ex C.L. Boynt. & Beadle) Perdue | prairie coneflower | Asteraceae
|
| RUFUS2 | Rudbeckia fulgida Ait. var. spathulata (Michx.) Perdue | orange coneflower | Asteraceae
|
| RUFUS3 | Rudbeckia fulgida Ait. var. speciosa (Wenderoth) Perdue | orange coneflower | Asteraceae
|
| RUFUS | Rudbeckia fulgida Ait. var. sullivantii (C.L. Boynt. & Beadle) Cronq. | Sullivant's coneflower | Asteraceae
|
| RUFUU | Rudbeckia fulgida Ait. var. umbrosa (C.L. Boynt. & Beadle) Cronq. | orange coneflower | Asteraceae
|
| RUFU2 | Rudbeckia fulgida Ait. | orange coneflower | Asteraceae
|
| RUGL3 | Rudbeckia glabra DC. | Rudbeckia nitida | Asteraceae
|
| RUGL7 | Rudbeckia glaucescens Eastw. | waxy coneflower | Asteraceae
|
| RUGL4 | Rudbeckia globosa Nutt. | Ratibida tagetes | Asteraceae
|
| RUGR7 | Rudbeckia graminifolia (Torr. & Gray) C.L. Boynt. & Beadle | grassleaf coneflower | Asteraceae
|
| RUGRA | Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. var. alismifolia (Torr. & Gray) Cronq. | rough coneflower | Asteraceae
|
| RUGRG | Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. var. grandiflora | rough coneflower | Asteraceae
|
| RUGR | Rudbeckia grandiflora (D. Don) J.F. Gmel. ex DC. | rough coneflower | Asteraceae
|
| RUHE | Rudbeckia heliopsidis Torr. & Gray | sunfacing coneflower | Asteraceae
|
| RUHE5 | Rudbeckia heterophylla Torr. & Gray | Rudbeckia laciniata var. digitata | Asteraceae
|
| RUHIA | Rudbeckia hirta L. var. angustifolia (T.V. Moore) Perdue | blackeyed Susan | Asteraceae
|
| RUHIB | Rudbeckia hirta L. var. brittonii (Small) Fern. | Rudbeckia hirta var. hirta | Asteraceae
|
| RUHIC | Rudbeckia hirta L. var. corymbifera Fern. | Rudbeckia hirta var. pulcherrima | Asteraceae
|
| RUHIF | Rudbeckia hirta L. var. floridana (T.V. Moore) Perdue | blackeyed Susan | Asteraceae
|
| RUHIH | Rudbeckia hirta L. var. hirta | blackeyed Susan | Asteraceae
|
| RUHIL | Rudbeckia hirta L. var. lanceolata (Bisch.) Core | Rudbeckia hirta var. pulcherrima | Asteraceae
|
| RUHIM | Rudbeckia hirta L. var. monticola (Small) Fern. | Rudbeckia hirta var. hirta | Asteraceae
|
| RUHIP | Rudbeckia hirta L. var. pulcherrima Farw. | blackeyed Susan | Asteraceae
|
| RUHIS | Rudbeckia hirta L. var. sericea (T.V. Moore) Fern. | Rudbeckia hirta var. pulcherrima | Asteraceae
|
| RUHIS2 | Rudbeckia hirta L. var. serotina (Nutt.) Core | Rudbeckia hirta var. pulcherrima | Asteraceae
|
| RUHI2 | Rudbeckia hirta L. | blackeyed Susan | Asteraceae
|
| RUKL | Rudbeckia klamathensis P. Cox & Urbatsch | Klamath coneflower | Asteraceae
|
| RULAA2 | Rudbeckia laciniata L. ssp. ampla (A. Nels.) W.A. Weber | Rudbeckia laciniata var. ampla | Asteraceae
|