| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| SOOC4 | Solidago occidentalis (Nutt.) Torr. & Gray | Euthamia occidentalis | Asteraceae
|
| SOODC | Solidago odora Ait. var. chapmanii (Gray) Cronq. | Chapman's goldenrod | Asteraceae
|
| SOODO | Solidago odora Ait. var. odora | anisescented goldenrod | Asteraceae
|
| SOOD | Solidago odora Ait. | anisescented goldenrod | Asteraceae
|
| SOOH | Solidago ohioensis Frank ex Riddell | Oligoneuron ohioense | Asteraceae
|
| SOOR | Solidago oreophila Rydb. | Solidago simplex ssp. simplex var. nana | Asteraceae
|
| SOOU | Solidago ouachitensis C.& J. Taylor | Ouachita Mountain goldenrod | Asteraceae
|
| SOOV | Solidago �ovata Friesner (pro sp.) | | Asteraceae
|
| SOPA8 | Solidago pallida (Porter) Rydb. | Solidago speciosa var. pallida | Asteraceae
|
| SOPA4 | Solidago parryi (Gray) Greene | Oreochrysum parryi | Asteraceae
|
| SOPA7 | Solidago parvirigida Beaudry | Oligoneuron rigidum var. humile | Asteraceae
|
| SOPAP | Solidago patula Muhl. ex Willd. var. patula | roundleaf goldenrod | Asteraceae
|
| SOPAS | Solidago patula Muhl. ex Willd. var. strictula Torr. & Gray | roundleaf goldenrod | Asteraceae
|
| SOPA2 | Solidago patula Muhl. ex Willd. | roundleaf goldenrod | Asteraceae
|
| SOPA5 | Solidago pauciflosculosa Michx. | Chrysoma pauciflosculosa | Asteraceae
|
| SOPE5 | Solidago pendula Small | Solidago radula var. radula | Asteraceae
|
| SOPE3 | Solidago perglabra Friesner | Euthamia gymnospermoides | Asteraceae
|
| SOPE4 | Solidago perlonga Fern. | Solidago gracillima | Asteraceae
|
| SOPEA | Solidago petiolaris Ait. var. angusta (Torr. & Gray) Gray | downy ragged goldenrod | Asteraceae
|
| SOPEP | Solidago petiolaris Ait. var. petiolaris | downy ragged goldenrod | Asteraceae
|
| SOPEW | Solidago petiolaris Ait. var. wardii (Britt.) Fern. | Solidago petiolaris var. angusta | Asteraceae
|
| SOPE | Solidago petiolaris Ait. | downy ragged goldenrod | Asteraceae
|
| SOPE6 | Solidago petiolata auct. non P. Mill. | Solidago sempervirens var. mexicana | Asteraceae
|
| SOPE7 | Solidago petradoria Blake | Petradoria pumila ssp. pumila | Asteraceae
|
| SOPI | Solidago pinetorum Small | Small's goldenrod | Asteraceae
|
| SOPI5 | Solidago pitcheri Nutt. | Solidago gigantea | Asteraceae
|
| SOPL | Solidago plumosa Small | plumed goldenrod | Asteraceae
|
| SOPO3 | Solidago polycephala Fern. | Euthamia graminifolia var. nuttallii | Asteraceae
|
| SOPO2 | Solidago porteri Small | Porter's goldenrod | Asteraceae
|
| SOPR | Solidago pruinosa Greene | Solidago canadensis var. gilvocanescens | Asteraceae
|
| SOPT4 | Solidago ptarmicoides (Nees) Boivin | Oligoneuron album | Asteraceae
|
| SOPU5 | Solidago pubens M.A. Curtis | Solidago caesia var. curtisii | Asteraceae
|
| SOPUP2 | Solidago puberula Nutt. var. puberula | downy goldenrod | Asteraceae
|
| SOPUP | Solidago puberula Nutt. var. pulverulenta (Nutt.) Chapman | downy goldenrod | Asteraceae
|
| SOPU | Solidago puberula Nutt. | downy goldenrod | Asteraceae
|
| SOPU7 | Solidago pulcherrima A. Nels. | Solidago nemoralis var. longipetiolata | Asteraceae
|
| SOPU3 | Solidago pulchra Small | Carolina goldenrod | Asteraceae
|
| SOPU6 | Solidago pulverulenta Nutt. | Solidago puberula var. pulverulenta | Asteraceae
|
| SOPU8 | Solidago purshii Porter | Solidago uliginosa var. linoides | Asteraceae
|
| SORAG | Solidago racemosa Greene var. gillmanii (Gray) Fern. | Solidago simplex ssp. randii var. gillmanii | Asteraceae
|
| SORA4 | Solidago racemosa Greene | Solidago simplex ssp. randii var. racemosa | Asteraceae
|
| SORAL | Solidago radula Nutt. var. laeta (Greene) Fern. | western rough goldenrod | Asteraceae
|
| SORAR | Solidago radula Nutt. var. radula | western rough goldenrod | Asteraceae
|
| SORAS | Solidago radula Nutt. var. stenolepis Fern. | western rough goldenrod | Asteraceae
|
| SORA | Solidago radula Nutt. | western rough goldenrod | Asteraceae
|
| SORAM | Solidago randii (Porter) Britt. var. monticola (Porter) Fern. | Solidago simplex ssp. randii var. monticola | Asteraceae
|
| SORA5 | Solidago randii (Porter) Britt. | Solidago simplex ssp. randii var. randii | Asteraceae
|
| SORE2 | Solidago remota (Greene) Friesner | Euthamia tenuifolia var. tenuifolia | Asteraceae
|
| SORI | Solidago riddellii Frank ex Riddell | Oligoneuron riddellii | Asteraceae
|
| SORIG2 | Solidago rigida L. ssp. glabrata (E.L. Braun) Heard & Semple | Oligoneuron rigidum var. glabratum | Asteraceae
|
| SORIH2 | Solidago rigida L. ssp. humilis (Porter) Heard & Semple | Oligoneuron rigidum var. humile | Asteraceae
|
| SORIG | Solidago rigida L. var. glabrata E.L. Braun | Oligoneuron rigidum var. glabratum | Asteraceae
|
| SORIH | Solidago rigida L. var. humilis Porter | Oligoneuron rigidum var. humile | Asteraceae
|
| SORIL | Solidago rigida L. var. laevicaulis Shinners | Oligoneuron rigidum var. glabratum | Asteraceae
|
| SORI2 | Solidago rigida L. | Oligoneuron rigidum var. rigidum | Asteraceae
|
| SORI4 | Solidago rigidiuscula (Torr. & Gray) Porter | Solidago speciosa var. rigidiuscula | Asteraceae
|
| SOROM | Solidago roanensis Porter var. monticola (Torr. & Gray) Fern. | Solidago roanensis | Asteraceae
|
| SORO2 | Solidago roanensis Porter | Roan Mountain goldenrod | Asteraceae
|
| SORO4 | Solidago rotundifolia DC. | Solidago radula var. radula | Asteraceae
|
| SORUA | Solidago rugosa P. Mill. ssp. aspera (Ait.) Cronq. | wrinkleleaf goldenrod | Asteraceae
|
| SORUR2 | Solidago rugosa P. Mill. ssp. rugosa var. rugosa | wrinkleleaf goldenrod | Asteraceae
|
| SORUS | Solidago rugosa P. Mill. ssp. rugosa var. sphagnophila Graves | wrinkleleaf goldenrod | Asteraceae
|
| SORUV | Solidago rugosa P. Mill. ssp. rugosa var. villosa (Pursh) Fern. | wrinkleleaf goldenrod | Asteraceae
|
| SORUR | Solidago rugosa P. Mill. ssp. rugosa | wrinkleleaf goldenrod | Asteraceae
|
| SORUC | Solidago rugosa P. Mill. var. celtidifolia (Small) Fern. | Solidago rugosa ssp. aspera | Asteraceae
|
| SORU2 | Solidago rugosa P. Mill. | wrinkleleaf goldenrod | Asteraceae
|
| SORU3 | Solidago rupestris Raf. | rock goldenrod | Asteraceae
|
| SOSA2 | Solidago salicina Ell. | Solidago patula var. strictula | Asteraceae
|
| SOSA5 | Solidago sarothrae Pursh | Gutierrezia sarothrae | Asteraceae
|
| SOSC5 | Solidago scaberrima Torr. & Gray | Solidago radula var. radula | Asteraceae
|
| SOSC4 | Solidago scabra Muhl. ex Willd., non Muhl. | Solidago rugosa ssp. rugosa var. rugosa | Asteraceae
|
| SOSC | Solidago sciaphila Steele | shadowy goldenrod | Asteraceae
|
| SOSC3 | Solidago scopulorum (Gray) A. Nels. | Solidago multiradiata var. scopulorum | Asteraceae
|
| SOSEM | Solidago sempervirens L. var. mexicana (L.) Fern. | seaside goldenrod | Asteraceae
|
| SOSES | Solidago sempervirens L. var. sempervirens | seaside goldenrod | Asteraceae
|
| SOSE | Solidago sempervirens L. | seaside goldenrod | Asteraceae
|
| SOSE10 | Solidago serotina Ait., non Retz. | Solidago gigantea | Asteraceae
|
| SOSE9 | Solidago serotinoides A.& D. L�ve | Solidago gigantea | Asteraceae
|
| SOSH | Solidago shortii Torr. & Gray | Short's goldenrod | Asteraceae
|
| SOSIG2 | Solidago simplex Kunth ssp. randii (Porter) Ringius var. gillmanii (Gray) Ringius | Rand's goldenrod | Asteraceae
|
| SOSIM | Solidago simplex Kunth ssp. randii (Porter) Ringius var. monticola (Porter) Ringius | Rand's goldenrod | Asteraceae
|
| SOSIO | Solidago simplex Kunth ssp. randii (Porter) Ringius var. ontarioensis (Ringius) Ringius | Ontario goldenrod | Asteraceae
|
| SOSIR2 | Solidago simplex Kunth ssp. randii (Porter) Ringius var. racemosa (Greene) Ringius | Rand's goldenrod | Asteraceae
|
| SOSIR3 | Solidago simplex Kunth ssp. randii (Porter) Ringius var. randii (Porter) Kartesz & Gandhi | Rand's goldenrod | Asteraceae
|
| SOSIR | Solidago simplex Kunth ssp. randii (Porter) Ringius | Rand's goldenrod | Asteraceae
|
| SOSIN | Solidago simplex Kunth ssp. simplex var. nana (Gray) Ringius | dwarf goldenrod | Asteraceae
|
| SOSIS3 | Solidago simplex Kunth ssp. simplex var. simplex | Mt. Albert goldenrod | Asteraceae
|
| SOSIS4 | Solidago simplex Kunth ssp. simplex var. spathulata (DC.) Cronq. | Mt. Albert goldenrod | Asteraceae
|
| SOSIS | Solidago simplex Kunth ssp. simplex | Mt. Albert goldenrod | Asteraceae
|
| SOSI3 | Solidago simplex Kunth | Mt. Albert goldenrod | Asteraceae
|
| SOSI4 | Solidago simulans Fern. | fall goldenrod | Asteraceae
|
| SOSP5 | Solidago sparsiflora Gray | Solidago velutina | Asteraceae
|
| SOSPG2 | Solidago spathulata DC. ssp. glutinosa (Nutt.) Keck | Solidago simplex ssp. simplex var. simplex | Asteraceae
|
| SOSPR2 | Solidago spathulata DC. ssp. randii (Porter) Gleason | Solidago simplex ssp. randii var. randii | Asteraceae
|
| SOSPG3 | Solidago spathulata DC. var. gillmanii (Gray) Gleason | Solidago simplex ssp. randii var. gillmanii | Asteraceae
|
| SOSPN | Solidago spathulata DC. var. nana (Gray) Cronq. | Solidago simplex ssp. simplex var. nana | Asteraceae
|
| SOSPN2 | Solidago spathulata DC. var. neomexicana (Gray) Cronq. | Solidago simplex ssp. simplex var. simplex | Asteraceae
|
| SOSPR4 | Solidago spathulata DC. var. racemosa (Greene) Gleason | Solidago simplex ssp. randii var. racemosa | Asteraceae
|
| SOSPS3 | Solidago spathulata DC. var. subcinerea Gray | Solidago velutina | Asteraceae
|
| SOSP | Solidago spathulata DC. | Solidago simplex ssp. simplex var. spathulata | Asteraceae
|
| SOSPA | Solidago speciosa Nutt. var. angustata Torr. & Gray | Solidago speciosa var. rigidiuscula | Asteraceae
|