| Latin Name | Common Name | Family | Synonyms | Edibility Rating | Medicinal Rating |
| Abies squamata | Flaky Fir | Pinaceae | | 0 | 0 |
| Acca sellowiana | Feijoa, Pineapple Guava | Myrtaceae | Acca sellowiana. Orthostemon sellowianus. | 4 | 0 |
| Acer campestre | Field Maple, Hedge maple | Aceraceae | | 2 | 1 |
| Aconitum fischeri | Fischer monkshood | Ranunculaceae | | 0 | 1 |
| Aethusa cynapium | Fool's Parsley | Apiaceae or Umbelliferae | | 1 | 1 |
| Agave cantala agave | Agave | Asparagaceae | Furcraea cantala Haw. | 2 | 0 |
| Ageratina herbacea | Fragrant Snakeroot | Asteraceae or Compositae | Eupatorium herbaceum. | 0 | 1 |
| Allium oleraceum | Field Garlic | Alliaceae | | 3 | 2 |
| Allium paradoxum | Few-Flowered Leek | Alliaceae | | 5 | 2 |
| Amianthium muscitoxicum | Fly Poison | Melanthiaceae | | 0 | 1 |
| Amorpha fruticosa | False Indigo, False indigo bush | Fabaceae or Leguminosae | | 1 | 0 |
| Aquilegia flabellata | Fan Columbine, Dwarf Columbine | Ranunculaceae | | 2 | 0 |
| Arisaema thunbergii | | Araceae | Flagellarisaema thunbergii. | 0 | 1 |
| Arisarum vulgare | Friar's Cowl | Araceae | | 2 | 0 |
| Artemisia campestris | Field Southernwood | Asteraceae or Compositae | | 0 | 2 |
| Artemisia frigida | Fringed Wormwood, Prairie sagewort | Asteraceae or Compositae | | 1 | 2 |
| Asclepias quadrifolia | Fourleaf Milkweed | Asclepiadaceae | | 2 | 2 |
| Asparagus filicinus | Fern Asparagus | Asparagaceae | | 2 | 1 |
| Boehmeria cylindrica | False Nettle, Smallspike false nettle | Urticaceae | | 0 | 0 |
| Brassica rapa parachinensis | False Pak Choi | Brassicaceae or Cruciferae | | 4 | 0 |
| Buglossoides arvensis | Field Gromwell, Corn gromwell | Boraginaceae | Aegonychon arvense (L.) Gray; Buglossoides arvensis f. cyanea R.Fern; Lithospermum arvense L; Margar | 1 | 1 |
| Butomus umbellatus | Flowering Rush | Butomaceae | | 3 | 0 |
| Calendula arvensis | Field Marigold | Asteraceae or Compositae | | 2 | 3 |
| Callirhoe digitata | Finger Poppy Mallow, Winecup | Malvaceae | | 2 | 0 |
| Caltha natans | Floating marsh marigold | Ranunculaceae | | 1 | 1 |
| Calypso bulbosa | Fairyslipper | Orchidaceae | C. borealis. Cytherea bulbosa. | 2 | 1 |
| Campanula cochleariifolia | Fairies Thimbles | Campanulaceae | C. bellardii. C. pumila. C. pusilla. | 4 | 0 |
| Carmona retusa | Fukien Tea, Philippine tea tree | Boraginaceae | Carmona heterophylla Cav. Carmona microphylla (Lam.) G.Don Cordia retusa Vahl Ehretia buxifolia Roxb | 2 | 4 |
| Casimiroa edulis | White Sapote, Mexican Apple | Rutaceae | Fagara bobacifolia (A.Rich.) Krug. & Urb. Zanthoxylum araliaceum Turcz. Zanthoxylum bombacifolium A. | 5 | 3 |
| Castanea pumila | Chinquapin, Ozark chinkapin | Fagaceae | Fagus pumila. | 4 | 1 |
| Castanea pumila ashei | Chinquapin | Fagaceae | Fagus pumila. | 4 | 1 |
| Casuarina torulosa | Forest Oak | Casuarinaceae | Allocasuarina torulosa. | 0 | 0 |
| Ceanothus fendleri | Fendler's Ceanothus | Rhamnaceae | | 2 | 1 |
| Cerastium arvense | Field Mouse-Ear Chickweed, Field chickweed | Caryophyllaceae | | 0 | 1 |
| Chenopodium album | Fat Hen, Lambsquarters | Chenopodiaceae | C. reticulatum. | 3 | 2 |
| Chenopodium ficifolium | Fig-Leaved Goosefoot | Chenopodiaceae | C. serotinum. non L. | 2 | 0 |
| Chenopodium graveolens | Foetid Goosefoot | Chenopodiaceae | Chenopodium cornutum. (Torr.)Benth.&Hook. | 2 | 1 |
| Chionanthus virginicus | Fringe Tree, White fringetree, Old Man's Beard, Fringe Tree | Oleaceae | C. pubescens. | 1 | 3 |
| Cimicifuga foetida | Foetid Bugbane | Ranunculaceae | C. europaea. | 1 | 3 |
| Clematis flammula | Fragrant Virgin's Bower, Fragrant clematis | Ranunculaceae | | 1 | 0 |
| Convolvulus arvensis | Field Bindweed | Convolvulaceae | | 1 | 2 |
| Cornus florida | Flowering Dogwood | Cornaceae | Benthamidia florida. Cynoxylon floridum. | 2 | 2 |
| Corydalis solida | Fumewort, Spring fumewort | Papaveraceae | C. bulbosa. C. halleri. | 1 | 3 |
| Corylus maxima | Filbert, Giant filbert | Betulaceae | C. tubulosa. | 5 | 0 |
| Crataegus chrysocarpa | Fireberry Hawthorn, Red haw, Piper's hawthorn, | Rosaceae | | 3 | 2 |
| Crataegus flabellata | Fanleaf hawthorn | Rosaceae | | 3 | 2 |
| Crataegus pruinosa | Frosted Hawthorn, Waxyfruit hawthorn | Rosaceae | | 3 | 2 |
| Crataegus succulenta | Fleshy hawthorn | Rosaceae | C. coloradensis. A.Nels. | 4 | 2 |
| Crepis runcinata | Fiddleleaf hawksbeard, Anderson's hawksbeard, Barber's hawksbeard, Hall's hawksbeard | Asteraceae or Compositae | Crepis glauca. (Nutt.)Torr.&Gray. | 1 | 0 |
| Cuscuta umbellata | Flatglobe dodder | Convolvulaceae | | 1 | 0 |
| Cymopterus fendleri | Fendler's Springparsley | Apiaceae or Umbelliferae | C. acaulis fendleri. (Gray.)Goodrich. | 2 | 0 |
| Cyperus fendlerianus | Fendler's Flatsedge | Cyperaceae | | 2 | 0 |
| Cyperus schweinitzii | Flatsedge, Schweinitz's flatsedge | Cyperaceae | | 2 | 0 |
| Cyrtanthus breviflorus | Fire Lily | Amaryllidaceae | Anoiganthus breviflorus. Harv. | 1 | 0 |
| Daphne gnidium | Flax-Leaved Daphne | Thymelaeaceae | | 0 | 1 |
| Descurainia sophia | Flixweed, Herb sophia | Brassicaceae or Cruciferae | Sisymbrium sophia. | 2 | 2 |
| Deutzia scabra | Fuzzy pride-of-rochester, Deutzia | Hydrangeaceae | D. crenata. Sieb.&Zucc. | 1 | 0 |
| Dianella laevis | Flax Lily | Phormiaceae | D. longifolia. R.Br. | 0 | 0 |
| Dianella revoluta | Flax Lily | Phormiaceae | | 2 | 0 |
| Dianella tasmanica | Flax Lily | Phormiaceae | | 0 | 0 |
| Dianthus superbus | Fringed Pink | Caryophyllaceae | D. wimmeri. | 2 | 3 |
| Digitalis purpurea | Foxglove, Purple foxglove, Common Foxglove | Scrophulariaceae | Digitalis alba. Digitalis campbelliana. Digitalis purpureolutea. Digitalis speciosa. | 0 | 4 |
| Dipsacus sativus | Fuller's Teasel, Indian teasel | Dipsacaceae | D. fullonum sativus. | 0 | 2 |
| Disporum trachycarpum | Fairybells | Colchicaceae | | 2 | 1 |
| Dittrichia viscosa | False yellowhead | Asteraceae or Compositae | Inula viscosa. (L.)Ait. | 0 | 0 |
| Dryopteris fragrans | Fragrant Woodfern | Dryopteridaceae | | 1 | 0 |
| Eleusine coracana | Finger Millet, African finger millet | Poaceae or Gramineae | | 4 | 2 |
| Embelia ribes | False black pepper, White-flowered Embelia | Primulaceae | Embelia garciniifolia Wall. ex Miq. Embelia glandulifera Wight | 3 | 4 |
| Equisetum arvense | Field Horsetail | Equisetaceae | Equisetum calderi. Equisetum saxicola. | 2 | 3 |
| Eremurus stenophyllus aurantiacus | Foxtail Lily | Asphodelaceae | E. aurantiacus. Baker. | 1 | 0 |
| Erica cerinthoides | Fire Heath | Ericaceae | | 1 | 0 |
| Eryngium campestre | Field Eryngo | Apiaceae or Umbelliferae | | 2 | 2 |
| Erythronium californicum | Fawn Lily, California fawnlily | Liliaceae | | 2 | 0 |
| Eucalyptus grandis | Flooded Gum, Gum, Rose Eucalyptus | Myrtaceae | | 0 | 2 |
| Eucalyptus tereticornis | Forest Red Gum | Myrtaceae | Eucalyptus coronata Tausch ex Maiden Eucalyptus insignis Naudin Eucalyptus populifolia Desf. Eucalyptus subulata A.Cunn. ex Schauer Eucalyptus umbellata (Gaertn.) Domin Leptospermum umbellatum Gaertn. | 2 | 2 |
| Euphorbia neriifolia | Fleshy spurge, Hedge Euphorbia, Oleander spurge | Euphorbiaceae | Elaeophorbia neriifolia (L.) A.Chev. Euphorbia edulis Lour. Euphorbia ligularia Roxb. ex Buch.-Ham. Euphorbia pentagona Blanco Euphorbia pentagona Noronha Tithymalus edulis (Lour.) H.Karst. | 2 | 2 |
| Euryale ferox | Foxnut, Euryale | Nymphaeaceae | | 3 | 2 |
| Fagopyrum dibotrys | Perennial Buckwheat | Polygonaceae | F. cymosum. (Trev.)Meissn. Polygonum chinense. P. dibotrys. | 4 | 2 |
| Fagopyrum esculentum | Buckwheat | Polygonaceae | F. sagittatum. F. vulgare. Polygonum fagopyrum. - correct name? | 3 | 3 |
| Fagraea fragrans | Ironwood, Tembusu | Gentianaceae | Fagraea cochinchinensis A.Chev. Fagraea gigantea Ridl. Fagraea sororia J.J.Smith Fagraea wallichiana | 0 | 2 |
| Fargesia nitida | Fountain Bamboo | Poaceae or Gramineae | Arundinaria nitida. Fargesia nitida. | 0 | 0 |
| Ferula assa-foetida | Asafoetida - Devil's Dung. Hing (Indian), Asafetida | Apiaceae or Umbelliferae | Ferula foetida. Ferula hooshee | 3 | 3 |
| Ferula communis | Giant Fennel | Apiaceae or Umbelliferae | F. brevifolia. F. linkii. | 1 | 1 |
| Ferula gummosa | Galbanum | Apiaceae or Umbelliferae | F. galbaniflua. Bioss.&Buhse. | 2 | 2 |
| Ferula moschata | Musk Root | Apiaceae or Umbelliferae | F. sumbul. Hook.f. (is this the correct name?[200]) | 0 | 2 |
| Ferula narthex | Ferula | Apiaceae or Umbelliferae | F. jaeschkeana. Vatke. | 2 | 2 |
| Fibigia clypeata | | Brassicaceae or Cruciferae | Farsetia clypeata | 2 | 0 |
| Ficus annulata | Huan wen rong, Nizhangde | Moraceae | Ficus balabacensis Quisumb. Ficus flavescens Blume Ficus valida Blume Urostigma annulatum (Blume) Miq. Urostigma depressum Miq. Urostigma flavescens (Blume) Miq. Urostigma validum Miq. | 2 | 0 |
| Ficus carica | Fig, Edible fig, Fig Common | Moraceae | | 4 | 2 |
| Ficus elastica | Rubber Plant. India Rubber Tree | Moraceae | Ficus clusiifolia Summerh. Ficus cordata Kunth & C.D.Bouch? Ficus karet (Miq.) King Ficus skytinodermis Summerh. Macrophthalma elastica (Roxb. ex Hornem.) Gasp. Urostigma elasticum (Roxb. ex Hornem.) Miq. Visiania elastica (Roxb. ex Hornem.) Gasp. | 2 | 2 |
| Filipendula vulgaris | Dropwort, Meadowsweet | Rosaceae | F. hexapetala. Spiraea filipendula. Ulmaria filipendula. | 2 | 1 |
| Fimbristylis sub-bispicata | | Cyperaceae | F. crassipes. F. gynophora. F. japonica. | 0 | 0 |
| Firmiana simplex | Chinese Parasol Tree, Chinese parasoltree, Japanese Varnish Tree, Chinese Parasol Tree | Sterculiaceae | F. platinifolia. Hibiscus simplex. Sterculia mariesii. S. platinifolia. | 1 | 1 |
| Fitzroya cupressoides | Alerce, Patagonian cypress | Cupressaceae | F. patagonica. Pinus cupressoides. | 0 | 0 |
| Foeniculum vulgare | Fennel, Sweet fennel | Apiaceae or Umbelliferae | Anethum dulce. Anethum foeniculum. Foeniculum divaricatum. Foeniculum officinale. Seseli foeniculum. | 5 | 3 |
| Foeniculum vulgare azoricum | Florence Fennel | Apiaceae or Umbelliferae | F. azoricum. | 3 | 3 |
| Foeniculum vulgare dulce | Sweet Fennel | Apiaceae or Umbelliferae | F. dulce. DC. non Mill. | 3 | 3 |
| Fontanesia phillyreoides fortunei | Xue Liu | Oleaceae | F. fortunei. | 0 | 0 |
| Forestiera neomexicana | Wild Olive | Oleaceae | F. pubescens glabrifolia. Adelia neo-mexicana. | 2 | 0 |
| Fragaria bracteata | Woodland Strawberry | Rosaceae | F. vesca bracteata. F. vesca crinita. | 2 | 0 |
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