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Plant List
Indexed Alphabetically by Common Name
F-G
For a list of plants indexed by Scientific Name, click here
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| National Common Name | Scientific Name with Author | Symbol | Family | |
| Fahkahatchee bluethread | Burmannia flava Mart. | BUFL2 | Burmanniaceae | |
| Fairbanks annual Indian paintbrush | Castilleja annua Pennell | CAAN8 | Scrophulariaceae | |
| Fairfield milkvetch | Astragalus atratus S. Wats. var. inseptus Barneby | ASATI | Fabaceae | |
| fairy bentspur orchid | Campylocentrum micranthum (Lindl.) Maury | CAMI26 | Orchidaceae | |
| fairy fans | Clarkia breweri (Gray) Greene | CLBR | Onagraceae | |
| fairy slipper | Calypso bulbosa (L.) Oakes | CABU | Orchidaceae | |
| fairy slipper | Calypso bulbosa (L.) Oakes var. americana (R. Br. ex Ait. f.) Luer | CABUA | Orchidaceae | |
| fairy slipper | Calypso bulbosa (L.) Oakes var. occidentalis (Holz.) Boivin | CABUO | Orchidaceae | |
| fairy slipper | Calypso Salisb. | CALYP | Orchidaceae | |
| fairyduster | Calliandra eriophylla Benth. | CAER | Fabaceae | |
| fairyswords | Cheilanthes lindheimeri Hook. | CHLI | Pteridaceae | |
| fairywand | Chamaelirium luteum (L.) Gray | CHLU | Liliaceae | |
| false agoseris | Agoseris glauca (Pursh) Raf. var. laciniata (D.C. Eat.) Smiley | AGGLL | Asteraceae | |
| false beardgrass | Chrysopogon Trin. | CHRYS6 | Poaceae | |
| false bindweed | Calystegia R. Br. | CALYS | Convolvulaceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners | BREU | Asteraceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners var. chlorolepis (Woot. & Standl.) B.L. Turner | BREUC2 | Asteraceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners var. corymbulosa (Torr. & Gray) Shinners | BREUC | Asteraceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners var. eupatorioides | BREUE | Asteraceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners var. floridana (R.W. Long) B.L. Turner | BREUF | Asteraceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners var. gracillima (Gray) B.L. Turner | BREUG | Asteraceae | |
| false boneset | Brickellia eupatorioides (L.) Shinners var. texana (Shinners) Shinners | BREUT | Asteraceae | |
| false brome | Brachypodium Beauv. | BRACH3 | Poaceae | |
| false chaff flower | Chamissoa altissima (Jacq.) Kunth | CHAL10 | Amaranthaceae | |
| false chiggergrape | Coccoloba venosa L. | COVE | Polygonaceae | |
| false cloak fern | Argyrochosma (Sm.) Windham | ARGYR5 | Pteridaceae | |
| false coolwort | Bolandra Gray | BOLAN | Saxifragaceae | |
| false cottonseed | Bombycilaena californica (Fisch. & C.A. Mey.) Holub | BOCA8 | Asteraceae | |
| false croton | Caperonia St.-Hil. | CAPER | Euphorbiaceae | |
| false daisyleaf moonwort | Botrychium pseudopinnatum W.H. Wagner | BOPS | Ophioglossaceae | |
| false Evans' reindeer lichen | Cladina pseudoevansii (Asah.) Hale & Culb. | CLPS3 | Cladoniaceae | |
| false fanpetals | Billieturnera Fryxell | BILLI | Malvaceae | |
| false flax | Camelina Crantz | CAMEL | Brassicaceae | |
| false foxglove | Agalinis Raf. | AGALI | Scrophulariaceae | |
| false foxglove | Aureolaria Raf. | AUREO | Scrophulariaceae | |
| false gilyflower | Allophyllum (Nutt.) A.& V. Grant | ALLOP2 | Polemoniaceae | |
| false goat's beard | Astilbe Buch.-Ham. ex D. Don | ASTIL | Saxifragaceae | |
| false grama | Cathestecum erectum Vasey & Hack. | CAER2 | Poaceae | |
| false grama | Cathestecum J. Presl | CATHE | Poaceae | |
| false hair sedge | Carex bulbostylis Mackenzie | CABU4 | Cyperaceae | |
| false heather | Cuphea hyssopifolia Kunth | CUHY | Lythraceae | |
| false hollyfern | Arachniodes chaerophylloides (Poir.) Proctor | ARCH10 | Dryopteridaceae | |
| false hop sedge | Carex lupuliformis Sartwell ex Dewey | CALU3 | Cyperaceae | |
| false Indianmallow | Allowissadula Bates | ALLOW | Malvaceae | |
| false indigo | Amorpha L. | AMORP | Fabaceae | |
| false madwort | Berteroa DC. | BERTE | Brassicaceae | |
| false neststraw | Ancistrocarphus filagineus Gray | ANFI3 | Asteraceae | |
| false nettle | Boehmeria Jacq. | BOEHM | Urticaceae | |
| false oxtongue | Blumea DC. | BLUME | Asteraceae | |
| false pak choi | Brassica parachinensis L. H. Bailey | BRPA13 | Brassicaceae | |
| false Philippine violet | Barleriola solanifolia (L.) Oerst. ex Lindau | BASO | Acanthaceae | |
| false rosemary | Conradina canescens Gray | COCA19 | Lamiaceae | |
| false rosemary | Conradina Gray | CONRA | Lamiaceae | |
| false sesame | Ceratotheca sesamoides Endl. | CESE9 | Pedaliaceae | |
| false sisal | Agave decipiens Baker | AGDE3 | Agavaceae | |
| false tick trefoil | Codariocalyx gyroides (Roxb. ex Link) Hassk. | COGY | Fabaceae | |
| false waterwillow | Andrographis echioides (L.) Nees | ANEC | Acanthaceae | |
| false waterwillow | Andrographis Wallich ex Nees | ANDRO5 | Acanthaceae | |
| falseteeth | Capparis flexuosa (L.) L. | CAFL2 | Capparaceae | |
| fan columbine | Aquilegia flabellata Siebold & Zucc. | AQFL2 | Ranunculaceae | |
| fan maidenhair | Adiantum tenerum Sw. | ADTE | Pteridaceae | |
| fan palm | Chamaerops L. | CHAMA19 | Arecaceae | |
| fanleaf hawthorn | Crataegus flabellata (Spach) Kirchn. | CRFL | Rosaceae | |
| fanshape orchid | Cochleanthes flabelliformis (Sw.) R.E. Schultes & Garay | COFL4 | Orchidaceae | |
| fanwort | Cabomba Aubl. | CABOM | Cabombaceae | |
| farewell to spring | Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr. | CLAM | Onagraceae | |
| farewell to spring | Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr. ssp. amoena | CLAMA | Onagraceae | |
| farewell to spring | Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr. ssp. caurina (Abrams ex Piper) H.F. & M.E. Lewis | CLAMC | Onagraceae | |
| farewell to spring | Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr. ssp. huntiana (Jepson) H.F. & M.E. Lewis | CLAMH | Onagraceae | |
| farinose cup lichen | Cladonia farinacea (Vainio) A. Evans | CLFA3 | Cladoniaceae | |
| Fassett's water-starwort | Callitriche fassettii Schotsman | CAFA3 | Callitrichaceae | |
| fatpork | Chione venosa (Sw.) Urban | CHVE4 | Rubiaceae | |
| Faurie's club | Cheirodendron fauriei Hochr. | CHFA | Araliaceae | |
| Faurie's cyanea | Cyanea fauriei Levl. | CYFA5 | Campanulaceae | |
| faux persil | Cardiospermum corindum L. | CACO31 | Sapindaceae | |
| feather fingergrass | Chloris virgata Sw. | CHVI4 | Poaceae | |
| feather reed grass | Calamagrostis ×acutiflora (Schrad.) Rchb. | CAAC19 | Poaceae | |
| feathered mosquitofern | Azolla pinnata R. Br. | AZPI | Azollaceae | |
| feather-head knapweed | Centaurea trichocephala Bieb. ex Willd. | CETR12 | Asteraceae | |
| featherleaf desertpeony | Acourtia runcinata (Lag. ex D. Don) B.L. Turner | ACRU3 | Asteraceae | |
| featherleaf springparsley | Cymopterus beckii Welsh & Goodrich | CYBE2 | Apiaceae | |
| fecund jelly lichen | Collema fecundum Degel. | COFE4 | Collemataceae | |
| feefee | Centrosema plumieri (Turp. ex Pers.) Benth. | CEPL | Fabaceae | |
| Fee's spleenwort | Asplenium feei Kunze ex Fée | ASFE3 | Aspleniaceae | |
| Felix anemone | Anemone oregana Gray var. felix (M.E. Peck) C.L. Hitchc. | ANORF | Ranunculaceae | |
| feltleaf bluestar | Amsonia tharpii Woods. | AMTH | Apocynaceae | |
| feltleaf ceanothus | Ceanothus arboreus Greene | CEAR | Rhamnaceae | |
| Fendler threeawn | Aristida purpurea Nutt. var. longiseta (Steud.) Vasey | ARPUL | Poaceae | |
| Fendler's brachythecium moss | Brachythecium fendleri (Sull.) Jaeg. | BRFE4 | Brachytheciaceae | |
| Fendler's brickellbush | Brickelliastrum fendleri (Gray) King & H.E. Robins. | BRFE2 | Asteraceae | |
| Fendler's ceanothus | Ceanothus fendleri Gray | CEFE | Rhamnaceae | |
| Fendler's false cloak fern | Argyrochosma fendleri (Kunze) Windham | ARFE5 | Pteridaceae | |
| Fendler's flatsedge | Cyperus fendlerianus Boeckl. | CYFE2 | Cyperaceae | |
| Fendler's lipfern | Cheilanthes fendleri Hook. | CHFE2 | Pteridaceae | |
| Fendler's rockcress | Arabis fendleri (S. Wats.) Greene | ARFE | Brassicaceae | |
| Fendler's rockcress | Arabis fendleri (S. Wats.) Greene var. fendleri | ARFEF | Brassicaceae | |
| Fendler's sandmat | Chamaesyce fendleri (Torr. & Gray) Small | CHFE3 | Euphorbiaceae | |
| Fendler's sandwort | Arenaria fendleri Gray | ARFE3 | Caryophyllaceae | |
| Fendler's sandwort | Arenaria fendleri Gray var. brevifolia (Maguire) Maguire | ARFEB | Caryophyllaceae | |
| Fendler's sandwort | Arenaria fendleri Gray var. fendleri | ARFEF3 | Caryophyllaceae | |
| Fendler's springparsley | Cymopterus acaulis (Pursh) Raf. var. fendleri (Gray) Goodrich | CYACF | Apiaceae | |
| Fendler's threeawn | Aristida purpurea Nutt. var. fendleriana (Steud.) Vasey | ARPUF | Poaceae | |
| Ferchel's bryum moss | Bryum capillare Hedw. var. ferchelii (Brid.) Bruch & Schimp. in B.S.G. | BRCAF | Bryaceae | |
| fern flatsedge | Cyperus filicinus Vahl | CYFI | Cyperaceae | |
| Fernald's sedge | Carex merritt-fernaldii Mackenzie | CAME12 | Cyperaceae | |
| ferngrass | Catapodium rigidum (L.) C.E. Hubbard ex Dony | CARI2 | Poaceae | |
| fern-leaf acacia | Acacia pennatula (Schltdl. & Cham.) Benth. | ACPE9 | Fabaceae | |
| fernleaf goldthread | Coptis aspleniifolia Salisb. | COAS | Ranunculaceae | |
| fernleaf yarrow | Achillea filipendulina Lam. | ACFI | Asteraceae | |
| fernleaf yellow false foxglove | Aureolaria pedicularia (L.) Raf. | AUPE2 | Scrophulariaceae | |
| fernleaf yellow false foxglove | Aureolaria pedicularia (L.) Raf. var. ambigens (Fern.) Farw. | AUPEA | Scrophulariaceae | |
| fernleaf yellow false foxglove | Aureolaria pedicularia (L.) Raf. var. austromontana Pennell | AUPEA2 | Scrophulariaceae | |
| fernleaf yellow false foxglove | Aureolaria pedicularia (L.) Raf. var. intercedens Pennell | AUPEI | Scrophulariaceae | |
| fernleaf yellow false foxglove | Aureolaria pedicularia (L.) Raf. var. pedicularia | AUPEP | Scrophulariaceae | |
| Ferris' milkvetch | Astragalus tener Gray var. ferrisiae A. Liston | ASTEF | Fabaceae | |
| Ferris' sandwort | Arenaria macradenia S. Wats. ssp. ferrisiae Abrams | ARMAF | Caryophyllaceae | |
| Ferron's milkvetch | Astragalus musiniensis M.E. Jones | ASMU3 | Fabaceae | |
| ferruginous clerodendrum | Clerodendrum trichotomum Thunb. var. ferrugineum Nakai | CLTRF | Verbenaceae | |
| fescue sandwort | Arenaria capillaris Poir. ssp. americana Maguire | ARCAA | Caryophyllaceae | |
| fescue sedge | Carex festucacea Schkuhr ex Willd. | CAFE3 | Cyperaceae | |
| fetid goosefoot | Chenopodium graveolens Willd. | CHGR2 | Chenopodiaceae | |
| fevertree | Acacia xanthophloea Benth. | ACXA3 | Fabaceae | |
| fewflower beggarticks | Bidens leptocephala Sherff | BILE | Asteraceae | |
| fewflower evening-primrose | Camissonia breviflora (Torr. & Gray) Raven | CABR22 | Onagraceae | |
| fewflower fumewort | Corydalis pauciflora (Steph.) Pers. | COPA11 | Fumariaceae | |
| fewflower hairsedge | Bulbostylis pauciflora (Liebm.) C.B. Clarke | BUPA | Cyperaceae | |
| fewflower holdback | Caesalpinia pauciflora (Griseb.) C. Wright ex Sauvalle | CAPA34 | Fabaceae | |
| fewflower milkweed | Asclepias lanceolata Walt. | ASLA2 | Asclepiadaceae | |
| fewflower sedge | Carex pauciflora Lightf. | CAPA19 | Cyperaceae | |
| fewleaf spiderflower | Cleome sparsifolia S. Wats. | CLSP2 | Capparaceae | |
| fewleaf thistle | Cirsium remotifolium (Hook.) DC. | CIRE | Asteraceae | |
| fewseed sedge | Carex oligosperma Michx. | CAOL3 | Cyperaceae | |
| fewseed sedge | Carex oligosperma Michx. var. oligosperma | CAOLO3 | Cyperaceae | |
| fewseeded bog sedge | Carex microglochin Wahlenb. | CAMI6 | Cyperaceae | |
| fibrousroot sedge | Carex communis Bailey | CACO7 | Cyperaceae | |
| fibrousroot sedge | Carex communis Bailey var. communis | CACOC4 | Cyperaceae | |
| fiddleleaf hawksbeard | Crepis runcinata (James) Torr. & Gray | CRRU3 | Asteraceae | |
| fiddleleaf hawksbeard | Crepis runcinata (James) Torr. & Gray ssp. glauca (Nutt.) Babcock & Stebbins | CRRUG | Asteraceae | |
| fiddleleaf hawksbeard | Crepis runcinata (James) Torr. & Gray ssp. hispidulosa (T.J. Howell ex Rydb.) Babcock & Stebbins | CRRUH2 | Asteraceae | |
| fiddleleaf hawksbeard | Crepis runcinata (James) Torr. & Gray ssp. imbricata Babcock & Stebbins | CRRUI | Asteraceae | |
| fiddleleaf hawksbeard | Crepis runcinata (James) Torr. & Gray ssp. runcinata | CRRUR | Asteraceae | |
| fiddleneck | Amsinckia Lehm. | AMSIN | Boraginaceae | |
| fiddlewood | Citharexylum L. | CITHA | Verbenaceae | |
| field anoda | Anoda pentaschista Gray | ANPE4 | Malvaceae | |
| field bindweed | Convolvulus arvensis L. | COAR4 | Convolvulaceae | |
| field brome | Bromus arvensis L. | BRAR5 | Poaceae | |
| field chickweed | Cerastium arvense L. | CEAR4 | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. arvense | CEARA2 | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. fuegianum (Hook. f.) Ugborogho | CEARF | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. maximum (Hollick & Britt.) Ugborogho | CEARM | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. strictum (L.) Ugborogho | CEARS2 | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho | CEARV2 | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho var. velutinum (Raf.) Britt. | CEARV3 | Caryophyllaceae | |
| field chickweed | Cerastium arvense L. ssp. velutinum (Raf.) Ugborogho var. villosum (Muhl. ex Darl.) Hollick & Britt. | CEARV4 | Caryophyllaceae | |
| field copperleaf | Acalypha aristata Kunth | ACAR17 | Euphorbiaceae | |
| field garlic | Allium oleraceum L. | ALOL | Liliaceae | |
| field Indian paintbrush | Castilleja arvensis Cham. & Schlecht. | CAAR21 | Scrophulariaceae | |
| field marigold | Calendula arvensis L. | CAAR | Asteraceae | |
| field mustard | Brassica rapa L. | BRRA | Brassicaceae | |
| field mustard | Brassica rapa L. var. amplexicaulis Tanaka & Ono | BRRAA | Brassicaceae | |
| field mustard | Brassica rapa L. var. rapa | BRRAR | Brassicaceae | |
| field parsley piert | Aphanes arvensis L. | APAR2 | Rosaceae | |
| field pumpkin | Cucurbita pepo L. | CUPE | Cucurbitaceae | |
| field pumpkin | Cucurbita pepo L. var. ovifera (L.) Harz | CUPEO | Cucurbitaceae | |
| field pumpkin | Cucurbita pepo L. var. pepo | CUPEP | Cucurbitaceae | |
| field pussytoes | Antennaria neglecta Greene | ANNE | Asteraceae | |
| field sagewort | Artemisia campestris L. | ARCA12 | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. borealis (Pallas) Hall & Clements | ARCAB2 | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. borealis (Pallas) Hall & Clements var. borealis (Pallas) M.E. Peck | ARCAB4 | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. borealis (Pallas) Hall & Clements var. petiolata Welsh | ARCAP4 | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. borealis (Pallas) Hall & Clements var. scouleriana (Hook.) Cronq. | ARCAS5 | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. borealis (Pallas) Hall & Clements var. wormskioldii (Bess. ex Hook.) Cronq. | ARCAW | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. campestris L. [excluded] | ARCAC13 | Asteraceae | |
| field sagewort | Artemisia campestris L. ssp. caudata (Michx.) Hall & Clements | ARCAC | Asteraceae | |
| field thistle | Cirsium discolor (Muhl. ex Willd.) Spreng. | CIDI | Asteraceae | |
| fierce Spaniard | Aciphylla ferox W.R.B. Oliv. | ACFE2 | Apiaceae | |
| fierce Spaniard | Aciphylla J.R. Forst. & G. Forst. | ACIPH | Apiaceae | |
| figleaf goosefoot | Chenopodium ficifolium Sm. | CHFI4 | Chenopodiaceae | |
| figleaf gourd | Cucurbita ficifolia Bouché | CUFI2 | Cucurbitaceae | |
| filiform anomobryum moss | Anomobryum filiforme (Dicks.) Solms in Rabenh. | ANFI4 | Bryaceae | |
| filiform cryphaea moss | Cryphaea filiformis (Hedw.) Brid. | CRFI4 | Cryphaeaceae | |
| filiform rockjasmine | Androsace filiformis Retz. | ANFI | Primulaceae | |
| filmy angelica | Angelica triquinata Michx. | ANTR2 | Apiaceae | |
| filmy kihifern | Adenophorus hymenophylloides (Kaulfuss) Hook. & Grev. | ADHY | Grammitidaceae | |
| finger cup lichen | Cladonia digitata (L.) Hoffm. | CLDI10 | Cladoniaceae | |
| finger dogshade | Cynosciadium digitatum DC. | CYDI2 | Apiaceae | |
| finger flatsedge | Cyperus digitatus Roxb. | CYDI5 | Cyperaceae | |
| finger rot | Cnidoscolus urens (L.) Arthur var. stimulosus (Michx.) Govaerts | CNURS | Euphorbiaceae | |
| fingerleaf gourd | Cucurbita digitata Gray | CUDI | Cucurbitaceae | |
| fir | Abies P. Mill. | ABIES | Pinaceae | |
| fir dwarf mistletoe | Arceuthobium abietinum Engelm. ex Munz | ARAB4 | Viscaceae | |
| fire reedgrass | Calamagrostis koelerioides Vasey | CAKO | Poaceae | |
| fire vine | Combretum paniculatum Vent. | COPA41 | Combretaceae | |
| fireberry hawthorn | Crataegus chrysocarpa Ashe | CRCH | Rosaceae | |
| fireberry hawthorn | Crataegus chrysocarpa Ashe var. chrysocarpa | CRCHC2 | Rosaceae | |
| firebush | Croton lucidus L. | CRLU2 | Euphorbiaceae | |
| firecrackerbush | Bouvardia ternifolia (Cav.) Schlecht. | BOTE2 | Rubiaceae | |
| firethread sedge | Carex scopulorum Holm var. prionophylla (Holm) L.A. Standley | CASCP | Cyperaceae | |
| fireweed | Chamerion angustifolium (L.) Holub | CHAN9 | Onagraceae | |
| fireweed | Chamerion angustifolium (L.) Holub ssp. angustifolium | CHANA2 | Onagraceae | |
| fireweed | Chamerion angustifolium (L.) Holub ssp. circumvagum (Mosquin) Hoch | CHANC | Onagraceae | |
| fireweed | Chamerion Raf. ex Holub | CHAME2 | Onagraceae | |
| Fischer monkshood | Aconitum fischeri Reichb. | ACFI3 | Ranunculaceae | |
| Fischer's chickweed | Cerastium fischerianum Ser. | CEFI | Caryophyllaceae | |
| Fish Lake thistle | Cirsium clavatum (M.E. Jones) Petrak | CICL | Asteraceae | |
| Fish Slough milkvetch | Astragalus lentiginosus Dougl. ex Hook. var. piscinensis Barneby | ASLEP3 | Fabaceae | |
| Fisher milkvetch | Astragalus piscator Barneby & Welsh | ASPI6 | Fabaceae | |
| fishgrass | Cabomba haynesii Wiersema | CAHA26 | Cabombaceae | |
| Fishlock's croton | Croton fishlockii Britt. | CRFI3 | Euphorbiaceae | |
| fishtail palm | Caryota L. | CARYO | Arecaceae | |
| fissure dot lichen | Arthonia fissurina Nyl. | ARFI6 | Arthoniaceae | |
| five eyes | Chamaesaracha (Gray) Benth. | CHAMA8 | Solanaceae | |
| fiveangled dodder | Cuscuta pentagona Engelm. | CUPE3 | Cuscutaceae | |
| fiveangled dodder | Cuscuta pentagona Engelm. var. pentagona | CUPEP2 | Cuscutaceae | |
| fivehorn smotherweed | Bassia hyssopifolia (Pallas) Kuntz | BAHY | Chenopodiaceae | |
| fivelobe cucumber | Cayaponia quinqueloba (Raf.) Shinners | CAQU3 | Cucurbitaceae | |
| fivestamen chickweed | Cerastium semidecandrum L. | CESE4 | Caryophyllaceae | |
| fivetooth spineflower | Chorizanthe watsonii Torr. & Gray | CHWA2 | Polygonaceae | |
| fivewing spiderling | Boerhavia intermedia M.E. Jones | BOIN | Nyctaginaceae | |
| flaccid brachythecium moss | Brachythecium salebrosum (Web. & Mohr) Schimp. in B.S.G. var. flaccidum Schimp. in B.S.G. | BRSAF | Brachytheciaceae | |
| Flagstaff rockcress | Arabis gracilipes Greene | ARGR4 | Brassicaceae | |
| flame bottletree | Brachychiton acerifolius (A. Cunn. ex G. Don) Macarthur | BRAC7 | Sterculiaceae | |
| flame keeper | Combretum paniculatum Vent. ssp. microphyllum (Klotzsch) Wickens | COPAM | Combretaceae | |
| flaming trumpet | Collomia rawsoniana Greene | CORA3 | Polemoniaceae | |
| flamingo-lily | Anthurium andraeanum Linden | ANAN15 | Araceae | |
| flatbud pricklypoppy | Argemone munita Dur. & Hilg. | ARMU | Papaveraceae | |
| flatbud pricklypoppy | Argemone munita Dur. & Hilg. ssp. argentea G.B. Ownbey | ARMUA | Papaveraceae | |
| flatbud pricklypoppy | Argemone munita Dur. & Hilg. ssp. munita | ARMUM | Papaveraceae | |
| flatbud pricklypoppy | Argemone munita Dur. & Hilg. ssp. robusta G.B. Ownbey | ARMUR2 | Papaveraceae | |
| flatbud pricklypoppy | Argemone munita Dur. & Hilg. ssp. rotundata (Rydb.) G.B. Ownbey | ARMUR | Papaveraceae | |
| flatglobe dodder | Cuscuta umbellata Kunth | CUUM | Cuscutaceae | |
| flatleaf flatsedge | Cyperus planifolius L.C. Rich. | CYPL4 | Cyperaceae | |
| flatsedge | Cyperus dioicus I.M. Johnston | CYDI14 | Cyperaceae | |
| flatsedge | Cyperus L. | CYPER | Cyperaceae | |
| flatsedge | Cyperus tenerrimus Liebm. | CYTE12 | Cyperaceae | |
| flatseed sandmat | Chamaesyce platysperma (Engelm. ex S. Wats.) Shinners | CHPL3 | Euphorbiaceae | |
| flatspike sedge | Abildgaardia ovata (Burm. f.) Kral | ABOV | Cyperaceae | |
| flat-spiked sedge | Carex planispicata Naczi | CAPL18 | Cyperaceae | |
| flatspine burr ragweed | Ambrosia acanthicarpa Hook. | AMAC2 | Asteraceae | |
| flat-top pussytoes | Antennaria corymbosa E. Nels. | ANCO | Asteraceae | |
| flat-top whiteweed | Ageratum corymbosum Zuccagni ex Pers. | AGCO2 | Asteraceae | |
| flax dodder | Cuscuta epilinum Weihe | CUEP2 | Cuscutaceae | |
| flaxleaf false foxglove | Agalinis linifolia (Nutt.) Britt. | AGLI2 | Scrophulariaceae | |
| flaxleaf pimpernel | Anagallis monelli L. | ANMO2 | Primulaceae | |
| fleshcolor pincushion | Chaenactis xantiana Gray | CHXA | Asteraceae | |
| fleshy clapdaisy | Clappia suaedifolia Gray | CLSU | Asteraceae | |
| fleshy hawthorn | Crataegus succulenta Schrad. ex Link | CRSU5 | Rosaceae | |
| flexible ceanothus | Ceanothus ×flexilis Greene ex McMinn [cuneatus × prostratus] | CEFL4 | Rhamnaceae | |
| flexile milkvetch | Astragalus flexuosus (Hook.) Dougl. ex G. Don | ASFL2 | Fabaceae | |
| flexile milkvetch | Astragalus flexuosus (Hook.) Dougl. ex G. Don var. flexuosus | ASFLF | Fabaceae | |
| Flint Mountain milkvetch | Astragalus siliceus Barneby | ASSI3 | Fabaceae | |
| floating antlerfern | Ceratopteris pteridoides (Hook.) Hieron. | CEPT | Parkeriaceae | |
| floating marsh marigold | Caltha natans Pallas ex Georgi | CANA | Ranunculaceae | |
| Flodman's thistle | Cirsium flodmanii (Rydb.) Arthur | CIFL | Asteraceae | |
| flor de conchitas | Centrosema pubescens Benth. | CEPU5 | Fabaceae | |
| flor de pasmo | Bletia patula Graham | BLPA | Orchidaceae | |
| flor de pasmo | Bletia patula Graham var. alba A.D. Hawkes | BLPAA | Orchidaceae | |
| flor de pasmo | Bletia patula Graham var. patula | BLPAP | Orchidaceae | |
| Florida alicia | Chapmannia floridana Torr. & Gray | CHFL2 | Fabaceae | |
| Florida amaranth | Amaranthus floridanus (S. Wats.) Sauer | AMFL3 | Amaranthaceae | |
| Florida bellflower | Campanula floridana S. Wats. ex Gray | CAFL18 | Campanulaceae | |
| Florida biatorella lichen | Biatorella floridensis H. Magn. | BIFL | Biatorellaceae | |
| Florida bluestem | Andropogon floridanus Scribn. | ANFL | Poaceae | |
| Florida cacalia | Arnoglossum floridanum (Gray) H.E. Robins. | ARFL2 | Asteraceae | |
| Florida calamint | Clinopodium dentatum (Chapman) Kuntze | CLDE4 | Lamiaceae | |
| Florida cup lichen | Cladonia floridana Vainio | CLFL6 | Cladoniaceae | |
| Florida dot lichen | Arthonia floridana Willey | ARFL5 | Arthoniaceae | |
| Florida dutchman's pipe | Aristolochia maxima Jacq. | ARMA9 | Aristolochiaceae | |
| Florida false beardgrass | Chrysopogon pauciflorus (Chapman) Benth. ex Vasey | CHPA11 | Poaceae | |
| Florida flatsedge | Cyperus floridanus Britt. | CYFL6 | Cyperaceae | |
| Florida goldenaster | Chrysopsis floridana Small | CHFL8 | Asteraceae | |
| Florida greeneyes | Berlandiera subacaulis (Nutt.) Nutt. | BESU | Asteraceae | |
| Florida hammock sandmat | Chamaesyce ophthalmica (Pers.) Burch | CHOP2 | Euphorbiaceae | |
| Florida hammock sedge | Carex vexans F.J. Herm. | CAVE10 | Cyperaceae | |
| Florida hawthorn | Crataegus panda Beadle | CRPA3 | Rosaceae | |
| Florida hobblebush | Agarista D. Don ex G. Don | AGARI | Ericaceae | |
| Florida hobblebush | Agarista populifolia (Lam.) Judd | AGPO2 | Ericaceae | |
| Florida Keys Indian mallow | Abutilon hirtum (Lam.) Sweet | ABHI | Malvaceae | |
| Florida Keys sensitive pea | Chamaecrista deeringiana Small & Pennell | CHDE9 | Fabaceae | |
| Florida lacefern | Ctenitis sloanei (Poepp. ex Spreng.) Morton | CTSL | Dryopteridaceae | |
| Florida lady's nightcap | Bonamia grandiflora (Gray) Hallier f. | BOGR5 | Convolvulaceae | |
| Florida milkvetch | Astragalus obcordatus Ell. | ASOB3 | Fabaceae | |
| Florida milkweed | Asclepias feayi Chapman ex Gray | ASFE4 | Asclepiadaceae | |
| Florida orange lichen | Caloplaca floridana (Tuck.) S. Tucker | CAFL32 | Teloschistaceae | |
| Florida orangegrass | Ctenium floridanum (A.S. Hitchc.) A.S. Hitchc. | CTFL | Poaceae | |
| Florida pimpernel | Anagallis pumila Sw. | ANPU4 | Primulaceae | |
| Florida roseling | Callisia cordifolia (Sw.) E.S. Anderson & Woods. | CACO19 | Commelinaceae | |
| Florida sandreed | Calamovilfa curtissii (Vasey) Scribn. | CACU | Poaceae | |
| Florida scrub roseling | Callisia ornata (Small) G. Tucker | CAOR10 | Commelinaceae | |
| Florida sedge | Carex floridana Schwein. | CAFL5 | Cyperaceae | |
| Florida silver palm | Coccothrinax argentata (Jacq.) Bailey | COAR | Arecaceae | |
| Florida strap airplant | Catopsis floribunda L.B. Sm. | CAFL10 | Bromeliaceae | |
| Florida threeawn | Aristida rhizomophora Swallen | ARRH | Poaceae | |
| Florida tickseed | Coreopsis floridana E.B. Sm. | COFL6 | Asteraceae | |
| Florida toadwood | Cupania glabra Sw. | CUGL | Sapindaceae | |
| Florida wild indigo | Baptisia calycosa Canby | BACA4 | Fabaceae | |
| Florida wild indigo | Baptisia calycosa Canby var. calycosa | BACAC2 | Fabaceae | |
| Florida wild indigo | Baptisia calycosa Canby var. villosa Canby | BACAV | Fabaceae | |
| florist's cyclamen | Cyclamen persicum Miller | CYPE10 | Primulaceae | |
| florist's daisy | Chrysanthemum ×morifolium Ramat. (pro sp.) | CHMO14 | Asteraceae | |
| florist's spiraea | Astilbe japonica (Morr. & Dcne.) Gray | ASJA2 | Saxifragaceae | |
| Florke's cup lichen | Cladonia floerkeana (Fr.) Florke | CLFL5 | Cladoniaceae | |
| flowering dogwood | Cornus florida L. | COFL2 | Cornaceae | |
| flowering quince | Chaenomeles Lindl. | CHAEN6 | Rosaceae | |
| flowering quince | Chaenomeles speciosa (Sweet) Nakai | CHSP12 | Rosaceae | |
| flowering rush | Butomus umbellatus L. | BUUM | Butomaceae | |
| flymallow | Cienfuegosia Cav. | CIENF | Malvaceae | |
| flypoison | Amianthium muscitoxicum (Walt.) Gray | AMMU | Liliaceae | |
| Flyr's nemesis | Brickellia cordifolia Ell. | BRCO8 | Asteraceae | |
| Fogg's goosefoot | Chenopodium foggii H.A. Wahl | CHFO3 | Chenopodiaceae | |
| foolproofplant | Billbergia pyramidalis (Sims) Lindl. | BIPY | Bromeliaceae | |
| fool's parsley | Aethusa cynapium L. | AECY2 | Apiaceae | |
| foothill arnica | Arnica fulgens Pursh | ARFU3 | Asteraceae | |
| foothill flatsedge | Cyperus amabilis Vahl | CYAM | Cyperaceae | |
| foothill milkvetch | Astragalus tridactylicus Gray | ASTR7 | Fabaceae | |
| forage kochia |