| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| FOCH | Fontinalis chrysophylla Card. | Fontinalis antipyretica var. oregonensis | Fontinalaceae
|
| FODAM | Fontinalis dalecarlica Schimp. in B.S.G. var. macounii Card. in Ren. & Card. | Fontinalis dalecarlica | Fontinalaceae
|
| FODA | Fontinalis dalecarlica Schimp. in B.S.G. | fontinalis moss | Fontinalaceae
|
| FODE | Fontinalis denticulata Kindb. in R�ll | Fontinalis flaccida | Fontinalaceae
|
| FODI | Fontinalis dichelymoides Lindb. | Fontinalis dalecarlica | Fontinalaceae
|
| FODI2 | Fontinalis disticha Hook. & Wils. in Drumm. | Fontinalis sullivantii | Fontinalaceae
|
| FODU | Fontinalis duriaei Schimp. | Fontinalis hypnoides var. duriaei | Fontinalaceae
|
| FOFI | Fontinalis filiformis Sull. & Lesq. in Aust. | fontinalis moss | Fontinalaceae
|
| FOFL | Fontinalis flaccida Ren. & Card. | flaccid fontinalis moss | Fontinalaceae
|
| FOHO | Fontinalis howellii Ren. & Card. | Fontinalis antipyretica var. oregonensis | Fontinalaceae
|
| FOHYD | Fontinalis hypnoides Hartm. var. duriaei (Schimp.) Husn. | fontinalis moss | Fontinalaceae
|
| FOHYH | Fontinalis hypnoides Hartm. var. hypnoides | fontinalis moss | Fontinalaceae
|
| FOHY2 | Fontinalis hypnoides Hartm. | fontinalis moss | Fontinalaceae
|
| FOKI | Fontinalis kindbergii Ren. & Card. | Fontinalis antipyretica var. oregonensis | Fontinalaceae
|
| FOLA | Fontinalis langloisii Card. | Langlois' fontinalis moss | Fontinalaceae
|
| FOLER | Fontinalis lescurii Sull. in Sull. & Lesq. var. ramosior Sull. | Fontinalis novae-angliae var. novae-angliae | Fontinalaceae
|
| FOLE | Fontinalis lescurii Sull. in Sull. & Lesq. | Fontinalis novae-angliae var. novae-angliae | Fontinalaceae
|
| FOLO | Fontinalis lorenziae (Card. in Nichols) Allen | Fontinalis novae-angliae var. lorenziae | Fontinalaceae
|
| FOMA3 | Fontinalis macmillanii Card. | Macmillan's fontinalis moss | Fontinalaceae
|
| FOMI2 | Fontinalis missourica Card. | Missouri fontinalis moss | Fontinalaceae
|
| FONE3 | Fontinalis neomexicana Sull. & Lesq. | New Mexican fontinalis moss | Fontinalaceae
|
| FONI | Fontinalis nitida Lindb. & Arnell | Fontinalis hypnoides var. duriaei | Fontinalaceae
|
| FONOC | Fontinalis novae-angliae Sull. var. cymbifolia (Aust.) Welch in Grout | New England fontinalis moss | Fontinalaceae
|
| FONOD | Fontinalis novae-angliae Sull. var. delamarei (Ren. & Card.) Welch in Grout | Fontinalis novae-angliae var. novae-angliae | Fontinalaceae
|
| FONOH | Fontinalis novae-angliae Sull. var. heterophylla Card. in Nichols | Fontinalis novae-angliae var. novae-angliae | Fontinalaceae
|
| FONOL2 | Fontinalis novae-angliae Sull. var. latifolia Card. in Nichols | Fontinalis novae-angliae var. novae-angliae | Fontinalaceae
|
| FONOL | Fontinalis novae-angliae Sull. var. lorenziae Card. in Nichols | Lorenz's fontinalis moss | Fontinalaceae
|
| FONON | Fontinalis novae-angliae Sull. var. novae-angliae | New England fontinalis moss | Fontinalaceae
|
| FONOW | Fontinalis novae-angliae Sull. var. waghornei (Card.) Welch in Grout | Fontinalis novae-angliae var. cymbifolia | Fontinalaceae
|
| FONO | Fontinalis novae-angliae Sull. | New England fontinalis moss | Fontinalaceae
|
| FOPA2 | Fontinalis patula Card. | Fontinalis antipyretica var. antipyretica | Fontinalaceae
|
| FOSP5 | Fontinalis sphagnifolia (C. M�ll.) Wijk & Marg. | fontinalis moss | Fontinalaceae
|
| FOSU4 | Fontinalis subcarinata Card. | Fontinalis hypnoides var. duriaei | Fontinalaceae
|
| FOSUM | Fontinalis sullivantii Lindb. var. microdonta (Ren.) Welch in Grout | Fontinalis sullivantii | Fontinalaceae
|
| FOSU3 | Fontinalis sullivantii Lindb. | Sullivant's fontinalis moss | Fontinalaceae
|
| FOTE4 | Fontinalis tenella (Card.) Card. | Fontinalis hypnoides var. hypnoides | Fontinalaceae
|
| FOWE | Fontinalis welchiana Allen | Welch's fontinalis moss | Fontinalaceae
|
| FONTI | Fontinalis Hedw. | fontinalis moss | Fontinalaceae
|
| FOAM | Foraminella ambigua (Wulfen) S. F. Meyer | Parmeliopsis ambigua | Parmeliaceae
|
| FOHY | Foraminella hyperopta (Ach.) S. F. Meyer | Parmeliopsis hyperopta | Parmeliaceae
|
| FOSU2 | Foraminella subambigua (Gyelnik) S. F. Meyer | Parmeliopsis subambigua | Parmeliaceae
|
| FOBR2 | Forchhammeria brevipes Urban | shortstalk forchhammeria | Capparaceae
|
| FOPO3 | Forchhammeria polyandra (Griseb.) Alain | manystamen forchhammeria | Capparaceae
|
| FORCH | Forchhammeria Standl. | forchhammeria | Capparaceae
|
| FOACP | Forestiera acuminata (Michx.) Poir. var. parviflora Gray | Forestiera pubescens var. pubescens | Oleaceae
|
| FOACV | Forestiera acuminata (Michx.) Poir. var. vestita Palmer | Forestiera acuminata | Oleaceae
|
| FOAC | Forestiera acuminata (Michx.) Poir. | eastern swampprivet | Oleaceae
|
| FOAN | Forestiera angustifolia Torr. | Texas swampprivet | Oleaceae
|
| FOAU | Forestiera autumnalis (Michx.) Poir. | Forestiera ligustrina | Oleaceae
|
| FOEG | Forestiera eggersiana Krug & Urban | inkbush | Oleaceae
|
| FOGL | Forestiera globularis Small | Forestiera segregata var. segregata | Oleaceae
|
| FOGO | Forestiera godfreyi L.C. Anders. | Godfrey's swampprivet | Oleaceae
|
| FOLI | Forestiera ligustrina (Michx.) Poir. | upland swampprivet | Oleaceae
|
| FONEA | Forestiera neomexicana Gray var. arizonica Gray | Forestiera pubescens var. pubescens | Oleaceae
|
| FONE | Forestiera neomexicana Gray | Forestiera pubescens var. pubescens | Oleaceae
|
| FOPH | Forestiera phillyreoides (Benth.) Torr. | Forestiera shrevei | Oleaceae
|
| FOPI | Forestiera pinetorum Small | Forestiera segregata var. pinetorum | Oleaceae
|
| FOPO2 | Forestiera porulosa (Michx.) Poir. | Forestiera segregata var. segregata | Oleaceae
|
| FOPU4 | Forestiera puberula Eastw. | Forestiera angustifolia | Oleaceae
|
| FOPUN | Forestiera pubescens Nutt. ssp. neomexicana (Gray) E. Murr. | Forestiera pubescens var. pubescens | Oleaceae
|
| FOPUG2 | Forestiera pubescens Nutt. var. glabrifolia Shinners | stretchberry | Oleaceae
|
| FOPUN2 | Forestiera pubescens Nutt. var. neomexicana (Gray) E. Murr. | Forestiera pubescens var. pubescens | Oleaceae
|
| FOPUP | Forestiera pubescens Nutt. var. pubescens | stretchberry | Oleaceae
|
| FOPU2 | Forestiera pubescens Nutt. | stretchberry | Oleaceae
|
| FORE | Forestiera reticulata Torr. | netleaf swampprivet | Oleaceae
|
| FORH | Forestiera rhamnifolia Griseb. | caca ravet | Oleaceae
|
| FOSEP | Forestiera segregata (Jacq.) Krug & Urban var. pinetorum (Small) M.C. Johnston | Florida swampprivet | Oleaceae
|
| FOSES | Forestiera segregata (Jacq.) Krug & Urban var. segregata | Florida swampprivet | Oleaceae
|
| FOSE | Forestiera segregata (Jacq.) Krug & Urban | Florida swampprivet | Oleaceae
|
| FOSH | Forestiera shrevei Standl. | desert olive | Oleaceae
|
| FOSP4 | Forestiera sphaerocarpa Torr. | Forestiera pubescens var. pubescens | Oleaceae
|
| FOTE3 | Forestiera texana Cory | Forestiera angustifolia | Oleaceae
|
| FORES | Forestiera Poir. | swampprivet | Oleaceae
|
| FOAR | Forsellesia arida (M.E. Jones) Heller | Glossopetalon spinescens var. aridum | Crossosomataceae
|
| FOCL | Forsellesia clokeyi Ensign | Glossopetalon clokeyi | Crossosomataceae
|
| FOME | Forsellesia meionandra (Koehne) Heller | Glossopetalon spinescens var. meionandrum | Crossosomataceae
|
| FONE2 | Forsellesia nevadensis (Gray) Greene | Glossopetalon spinescens var. aridum | Crossosomataceae
|
| FOPL | Forsellesia planitierum Ensign | Glossopetalon planitierum | Crossosomataceae
|
| FOPUG | Forsellesia pungens (Brandeg.) Heller var. glabra Ensign | Glossopetalon pungens | Crossosomataceae
|
| FOPU3 | Forsellesia pungens (Brandeg.) Heller | Glossopetalon pungens | Crossosomataceae
|
| FOSP3 | Forsellesia spinescens (Gray) Greene | Glossopetalon spinescens var. spinescens | Crossosomataceae
|
| FOST | Forsellesia stipulifera (St. John) Ensign | Glossopetalon spinescens var. aridum | Crossosomataceae
|
| FOTE2 | Forsellesia texensis Ensign | Glossopetalon texense | Crossosomataceae
|
| FOMI | Forssellia minnesotensis (Fink) Fink | Lichinella minnesotensis | Lichinaceae
|
| FONI2 | Forsstroemia nitida Lindb. | Neomacounia nitida | Neckeraceae
|
| FOOH | Forsstroemia ohioense (Sull.) Lindb. | Forsstroemia producta | Leptodontaceae
|
| FOPR | Forsstroemia producta (Hornsch.) Par. | forsstroemia moss | Leptodontaceae
|
| FOTRF | Forsstroemia trichomitria (Hedw.) Lindb. var. floridana (Lindb.) Crum et al. | Forsstroemia trichomitria | Leptodontaceae
|
| FOTRI | Forsstroemia trichomitria (Hedw.) Lindb. var. immersa (Sull. & Lesq. in Sull. in Gray) Lindb. | Forsstroemia trichomitria | Leptodontaceae
|
| FOTR | Forsstroemia trichomitria (Hedw.) Lindb. | forsstroemia moss | Leptodontaceae
|
| FORSS | Forsstroemia Lindb. | forsstroemia moss | Leptodontaceae
|
| FOCO | Forsteronia corymbosa (Jacq.) G.F.W. Mey. | leche de perra | Apocynaceae
|
| FOPO | Forsteronia portoricensis Woods. | Forsteronia corymbosa | Apocynaceae
|
| FORST | Forsteronia G.F.W. Mey. | forsteronia | Apocynaceae
|
| FOIN3 | Forsythia �intermedia Zabel | showy forsythia | Oleaceae
|
| FOOV80 | Forsythia ovata Nakai | early forsythia | Oleaceae
|
| FOSU | Forsythia suspensa (Thunb.) Vahl | weeping forsythia | Oleaceae
|
| FOVI | Forsythia viridissima Lindl. | greenstem forsythia | Oleaceae
|
| FORSY | Forsythia Vahl | forsythia | Oleaceae
|
| FOCR | Fortunella �crassifolia Swingle | Meiwa kumquat | Rutaceae
|
| FOHI | Fortunella hindsii (Champ. ex Benth.) Swingle | Hong Kong kumquat | Rutaceae
|