There are 162 herbs that start with the letter F, from Fagopyrum to Fábregas. Below you will find them listed alphabetically along with some general information about each. Click the toggle view buttons in the top right corner to switch between the card and the table view.
For each item you will find the following information
Order: The subclass the herbs belongs to
Habitat: The places or type of weather the herbs lives in
Scientific name: The designation that scientists use to catalog the species
Name: Fagopyrum
Order: Caryophyllales
Habitat: Cultivated as a cereal crop
Scientific name: Fagopyrum esculentum
Name: Fairy Candle
Order: Asterales
Habitat: Moist woodland areas
Scientific name: Lysimachia clethroides
Name: Fairy Fans
Order: Caryophyllales
Habitat: Woodland
Scientific name: Dianthus deltoides
Name: Fairy Fern
Order: Polypodiales
Habitat: Tropical and subtropical regions
Scientific name: Dicranopteris linearis
Name: Fairy Fingers
Order: Asparagales
Habitat: Woodland
Scientific name: Digitalis purpurea
Name: Fairy Flax
Order: Malpighiales
Habitat: Grasslands and heaths
Scientific name: Linum catharticum
Name: Fairy Floss
Order: Malvales
Habitat: Tropical and subtropical regions
Scientific name: Calliandra haematocephala
Name: Fairy Godmother's Herb
Order: Asterales
Habitat: Lawns, gardens, and waste areas
Scientific name: Matricaria chamomilla
Name: Fairy Lantern
Order: Liliales
Habitat: Coastal woodlands and grasslands
Scientific name: Calochortus albus
Name: Fairy Lilies
Order: Asparagales
Habitat: Meadow
Scientific name: Zephyranthes spp.
Name: Fairy Mist
Order: Ericales
Habitat: Australia
Scientific name: Blandfordia nobilis
Name: Fairy Pipewort
Order: Poales
Habitat: Asia and Australia
Scientific name: Eriocaulon cinereum
Name: Fairy Shrimp
Order: Anostraca
Habitat: Temporary Pools
Scientific name: Branchinecta spp.
Name: Fairy Shrimp Plant
Order: Lamiales
Habitat: Moist woodlands and meadows
Scientific name: Pedicularis canadensis
Name: Fairy Spear
Order: Asparagales
Habitat: Coastal regions and grasslands
Scientific name: Charlemagnea angustifolia
Name: Fairy Spoon
Order: Ericales
Habitat: Western North America
Scientific name: Sarcodes sanguinea
Name: Fairy Spuds
Order: Rosales
Habitat: Woodland
Scientific name: Soleirolia soleirolii
Name: Fairy Sword
Order: Asparagales
Habitat: Mediterranean region
Scientific name: Gladiolus communis
Name: Fairy Thimble
Order: Ericales
Habitat: Eastern North America
Scientific name: Corema conradii
Name: Fairy Thimbles
Order: Lamiales
Habitat: Woodland
Scientific name: Dalminia spp.
Name: Fairy Wand
Order: Caryophyllales
Habitat: Alpine
Scientific name: Androsace spp.
Name: Fairy Whispers
Order: Cyperales
Habitat: Dry, calcareous soils in open woods
Scientific name: Carex eburnea
Name: Fairy Wings
Order: Asterales
Habitat: Meadow
Scientific name: Ageratum spp.
Name: Falcaria
Order: Apiales
Habitat: Grassland
Scientific name: Falcaria vulgaris
Name: Fall Crocus
Order: Asparagales
Habitat: Meadows, pastures, and roadsides
Scientific name: Colchicum autumnale
Name: Fall Dandelion
Order: Asterales
Habitat: Europe and temperate Asia
Scientific name: Leontodon autumnalis
Name: False Asphodel
Order: Asparagales
Habitat: Wetland
Scientific name: Tofieldia spp.
Name: False Aster
Order: Asterales
Habitat: Eastern North America
Scientific name: Boltonia asteroides
Name: False Buckwheat
Order: Caryophyllales
Habitat: Widespread in temperate regions
Scientific name: Fallopia convolvulus
Name: False Bugbane
Order: Ranunculales
Habitat: Woodland
Scientific name: Trautvetteria spp.
Name: False Chamomile
Order: Asterales
Habitat: Widespread in temperate regions
Scientific name: Matricaria discoidea
Name: False Cleavers
Order: Gentianales
Habitat: Cultivated fields and waste areas
Scientific name: Galium spurium
Name: False Clovers
Order: Fabales
Habitat: Grassland
Scientific name: Trifolium spp.
Name: False Dandelion
Order: Asterales
Habitat: Lawns, pastures, and roadsides
Scientific name: Hypochaeris radicata
Name: False Dragonhead
Order: Lamiales
Habitat: Eastern North America
Scientific name: Physostegia virginiana
Name: False Fleabane
Order: Asterales
Habitat: North America
Scientific name: Erigeron philadelphicus
Name: False Garlic
Order: Asparagales
Habitat: Grassland
Scientific name: Nothoscordum spp.
Name: False Goat's Beard
Order: Asterales
Habitat: Europe and temperate Asia
Scientific name: Tragopogon pratensis
Name: False Goatsbeard
Order: Asterales
Habitat: Eurasia and North America
Scientific name: Tragopogon dubius
Name: False Hellebore
Order: Liliales
Habitat: Europe and temperate Asia
Scientific name: Veratrum album
Name: False Henbane
Order: Solanales
Habitat: Disturbed
Scientific name: Hyoscyamus niger
Name: False Indigo
Order: Fabales
Habitat: Eastern North America
Scientific name: Amorpha fruticosa
Name: False Indigo-Bush
Order: Fabales
Habitat: Woodland
Scientific name: Amorpha fruticosa
Name: False Lily of the Valley
Order: Asparagales
Habitat: Woodland
Scientific name: Maianthemum spp.
Name: False Loosestrife
Order: Myrtales
Habitat: Wetlands, ditches, and pond margins
Scientific name: Ludwigia palustris
Name: False Mermaid-Weed
Order: Haloragales
Habitat: Wetland
Scientific name: Haloragis spp.
Name: False Nettle
Order: Rosales
Habitat: Eastern North America
Scientific name: Boehmeria cylindrica
Name: False Nightshade
Order: Solanales
Habitat: Woodland
Scientific name: Solanum spp.
Name: False Oat
Order: Poales
Habitat: Meadows, pastures, and roadsides
Scientific name: Arrhenatherum elatius
Name: False Packsaddle
Order: Caryophyllales
Habitat: Disturbed
Scientific name: Atriplex spp.
Name: False Pennyroyal
Order: Lamiales
Habitat: Eastern North America
Scientific name: Trichostema dichotomum
Name: False Pennywort
Order: Apiales
Habitat: Moist, shaded areas and lawns
Scientific name: Hydrocotyle sibthorpioides
Name: False Pimpernel
Order: Lamiales
Habitat: North America
Scientific name: Lindernia dubia
Name: False Poinsettia
Order: Malpighiales
Habitat: Waste areas, gardens, and fields
Scientific name: Euphorbia cyathophora
Name: False Senna
Order: Fabales
Habitat: Disturbed areas, roadsides, and woodlands
Scientific name: Senna marilandica
Name: False Solomon's Seal
Order: Asparagales
Habitat: North America
Scientific name: Maianthemum racemosum
Name: False Spikemoss
Order: Selaginellales
Habitat: Eastern North America
Scientific name: Selaginella apoda
Name: False Sunflower
Order: Asterales
Habitat: North America
Scientific name: Heliopsis helianthoides
Name: False Tobacco
Order: Solanales
Habitat: Central and South America
Scientific name: Nicotiana glauca
Name: False Valerian
Order: Dipsacales
Habitat: Meadows, roadsides, and disturbed areas
Scientific name: Valeriana officinalis
Name: Fameflower
Order: Caryophyllales
Habitat: North America
Scientific name: Phemeranthus teretifolius
Name: Fandangle
Order: Asterales
Habitat: North America
Scientific name: Fandanglea foliosa
Name: Faraday Grass
Order: Poales
Habitat: Australia
Scientific name: Faradaya australiana
Name: Farkleberry
Order: Ericales
Habitat: Southeastern United States
Scientific name: Vaccinium arboreum
Name: Farthing Herb
Order: Lamiales
Habitat: Europe
Scientific name: Farthingwortia officinalis
Name: Fava Bean
Order: Fabales
Habitat: Worldwide
Scientific name: Vicia faba
Name: Fazzia
Order: Asterales
Habitat: Central Asia
Scientific name: Fazzia nepalensis
Name: Feaberry
Order: Ericales
Habitat: North America
Scientific name: Ribes oxyacanthoides
Name: Fearless Nettle
Order: Rosales
Habitat: Widespread in temperate regions
Scientific name: Urtica dioica
Name: Featherbells
Order: Asparagales
Habitat: Grasslands, meadows, and open woods
Scientific name: Themidaceae species
Name: Featherfoil
Order: Asterales
Habitat: North America
Scientific name: Featherfolium aquaticum
Name: Featherweed
Order: Caryophyllales
Habitat: Tropical and subtropical regions
Scientific name: Celosia argentea
Name: Feathery False Lily of the Valley
Order: Asparagales
Habitat: Temperate forests of North America
Scientific name: Maianthemum racemosum
Name: Fecola
Order: Lamiales
Habitat: Mediterranean region
Scientific name: Fecolum viscosa
Name: Fedge
Order: Cyperales
Habitat: Dry, open woods and meadows
Scientific name: Carex pensylvanica
Name: Fendler's Aster
Order: Asterales
Habitat: Western North America
Scientific name: Symphyotrichum fendleri
Name: Fendler's Bladderpod
Order: Brassicales
Habitat: Western North America
Scientific name: Physaria fendleri
Name: Fendler's Goosefoot
Order: Caryophyllales
Habitat: Dry, disturbed areas and roadsides
Scientific name: Chenopodium fendleri
Name: Fendler's Meadow-Rue
Order: Ranunculales
Habitat: Western North America
Scientific name: Fendlera rupicola
Name: Fendler's Sandwort
Order: Caryophyllales
Habitat: Western North America
Scientific name: Eremogone fendleri
Name: Fendler's Stickseed
Order: Boraginales
Habitat: Western North America
Scientific name: Hackelia fendleri
Name: Fendler's Waterleaf
Order: Boraginales
Habitat: Western North America
Scientific name: Hydrophyllum fendleri
Name: Fenland Violet
Order: Malpighiales
Habitat: Wetlands of Europe
Scientific name: Viola persicifolia
Name: Fennel
Order: Apiales
Habitat: Native to the shores of the Mediterranean
Scientific name: Foeniculum vulgare
Name: Fennel Flower
Order: Ranunculales
Habitat: Mediterranean region
Scientific name: Nigella damascena
Name: Fennel Parsley
Order: Apiales
Habitat: Coastal regions and disturbed habitats
Scientific name: Peucedanum foeniculum
Name: Fenugreek
Order: Fabales
Habitat: Native to the Mediterranean region and Western Asia
Scientific name: Trigonella foenum-graecum
Name: Fenugreek Dodder
Order: Convolvulaceae
Habitat: Widespread in temperate regions
Scientific name: Cuscuta trifolii
Name: Fern Moss
Order: Bryales
Habitat: Widespread
Scientific name: Thuidium delicatulum
Name: Fern-Leaf Yarrow
Order: Asterales
Habitat: Caucasus region
Scientific name: Achillea filipendulina
Name: Fernald's Sedge
Order: Poales
Habitat: Northeastern United States
Scientific name: Carex fernaldii
Name: Fernleaf Biscuitroot
Order: Apiales
Habitat: Western North America
Scientific name: Lomatium dissectum
Name: Ferula
Order: Apiales
Habitat: Mediterranean region
Scientific name: Ferula communis
Name: Fescue
Order: Poales
Habitat: Found worldwide in temperate regions
Scientific name: Festuca spp.
Name: Fetid Adder's-tongue
Order: Ophioglossales
Habitat: North America
Scientific name: Fetidus ophioglossoides
Name: Fetid Marigold
Order: Asterales
Habitat: Prairies, pastures, and waste areas
Scientific name: Dyssodia papposa
Name: Fetter Bush
Order: Ericales
Habitat: Eastern North America
Scientific name: Fetterbushia racemosa
Name: Fetterbush
Order: Ericales
Habitat: Eastern North America
Scientific name: Lyonia lucida
Name: Feverfew
Order: Asterales
Habitat: Native to southeastern Europe and Asia Minor
Scientific name: Tanacetum parthenium
Name: Feverwort
Order: Dipsacales
Habitat: Eurasia
Scientific name: Feverwortia tripartita
Name: Fibrous Water Fern
Order: Polypodiales
Habitat: Aquatic and wetland habitats
Scientific name: Ceratopteris thalictroides
Name: Fiddleneck
Order: Boraginales
Habitat: Disturbed areas, fields, and roadsides
Scientific name: Amsinckia species
Name: Field Eryngo
Order: Apiales
Habitat: Dry, disturbed areas and meadows
Scientific name: Eryngium campestre
Name: Field Pennycress
Order: Brassicales
Habitat: Cultivated fields, roadsides, and waste areas
Scientific name: Thlaspi arvense
Name: Fierydarts
Order: Alismatales
Habitat: South America
Scientific name: Echinodorus cordifolius
Name: Figwort
Order: Lamiales
Habitat: Eurasia
Scientific name: Figwortia nodosa
Name: Fiji Asparagus
Order: Asparagales
Habitat: Fiji Islands
Scientific name: Asparagus filicinus
Name: Filago
Order: Asterales
Habitat: Europe
Scientific name: Filagium germanicum
Name: Filbert
Order: Fagales
Habitat: Eurasia
Scientific name: Filbertia maxima
Name: Filmy Fern
Order: Hymenophyllales
Habitat: Temperate regions worldwide
Scientific name: Hymenophyllum wilsonii
Name: Fineray
Order: Apiales
Habitat: Cultivated areas and disturbed habitats
Scientific name: Anthriscus cerefolium
Name: Finetree
Order: Cupressales
Habitat: Western North America
Scientific name: Finetrea californica
Name: Finger Grape
Order: Vitales
Habitat: Eastern North America
Scientific name: Vitis aestivalis
Name: Finger Grass
Order: Poales
Habitat: Worldwide
Scientific name: Digitaria
Name: Fingergrass
Order: Poales
Habitat: Lawns, pastures, and roadsides
Scientific name: Chloris species
Name: Finocchio
Order: Apiales
Habitat: Mediterranean region
Scientific name: Finochium officinale
Name: Fiorin
Order: Poales
Habitat: Native to Europe and Asia
Scientific name: Agrostis stolonifera
Name: Fireberry
Order: Ericales
Habitat: Dry, sandy soils in woods and thickets
Scientific name: Vaccinium stamineum
Name: Firecracker Plant
Order: Lamiales
Habitat: Africa and Asia
Scientific name: Crossandra infundibuliformis
Name: Firelight Orchid
Order: Asparagales
Habitat: Australia
Scientific name: Caladenia catenata
Name: Fireweed
Order: Rosales
Habitat: Northern Hemisphere
Scientific name: Fireweedea angustifolia
Name: Fish Mint
Order: Lamiales
Habitat: Asia
Scientific name: Houttuynia cordata
Name: Flame Lily
Order: Liliales
Habitat: Africa and Asia
Scientific name: Gloriosa superba
Name: Flame Nettle
Order: Lamiales
Habitat: Southeast Asia
Scientific name: Coleus blumei
Name: Flame Vine
Order: Bignoniaceae
Habitat: South America
Scientific name: Pyrostegia venusta
Name: Flameleaf
Order: Laurales
Habitat: Eastern North America
Scientific name: Flameleafa florida
Name: Flamingo Flower
Order: Alismatales
Habitat: Tropical regions of the Americas
Scientific name: Anthurium
Name: Flax
Order: Malpighiales
Habitat: Originated in the Middle East
Scientific name: Linum usitatissimum
Name: Flax Dodder
Order: Convolvulales
Habitat: Eurasia
Scientific name: Flaxdoddera europaea
Name: Flax-lily
Order: Asparagales
Habitat: New Zealand
Scientific name: Flaxlilium novae-zelandiae
Name: Flaxleaf Fleabane
Order: Asterales
Habitat: Southwestern United States
Scientific name: Erigeron linifolius
Name: Floating Primrose-Willow
Order: Myrtales
Habitat: Americas and Africa
Scientific name: Ludwigia peploides
Name: Floating Water Fern
Order: Salviniales
Habitat: Aquatic habitats and slow-moving waters
Scientific name: Salvinia molesta
Name: Florida Aloe
Order: Asparagales
Habitat: Florida
Scientific name: Aloe barbadensis
Name: Florida Betony
Order: Lamiales
Habitat: Southeastern US
Scientific name: Stachys floridana
Name: Florida Clover
Order: Fabales
Habitat: Dry, sandy soils in pinelands and scrubs
Scientific name: Trifolium floridanum
Name: Florida False Gromwell
Order: Boraginales
Habitat: Southeastern US
Scientific name: Onosmodium virginianum
Name: Florida Gamagrass
Order: Poales
Habitat: Florida
Scientific name: Tripsacum floridanum
Name: Florida Indian Plantain
Order: Asterales
Habitat: Florida
Scientific name: Arnoglossum floridanum
Name: Florida Jasmine
Order: Gentianales
Habitat: Southeastern US
Scientific name: Gelsemium sempervirens
Name: Florida Loosestrife
Order: Myrtales
Habitat: Wetlands, swamps, and pond margins
Scientific name: Decodon verticillatus
Name: Florida Paintbrush
Order: Lamiales
Habitat: Southeastern US
Scientific name: Castilleja coccinea
Name: Florida Peperomia
Order: Piperales
Habitat: Florida
Scientific name: Peperomia obtusifolia
Name: Florida Prickly Pear
Order: Caryophyllales
Habitat: Southeastern US
Scientific name: Opuntia humifusa
Name: Foam Flower
Order: Saxifragales
Habitat: Moist, shaded forests and stream banks
Scientific name: Tiarella cordifolia
Name: Foamflower
Order: Saxifragales
Habitat: Moist, shaded areas in forests and woodlands
Scientific name: Tiarella species
Name: Foamplant
Order: Saxifragales
Habitat: Moist, shaded areas in forests and gardens
Scientific name: Astilbe species
Name: Foetid Marigold
Order: Asterales
Habitat: Prairies, roadsides, and waste areas
Scientific name: Dyssodia papposa
Name: Forage Kochia
Order: Caryophyllales
Habitat: Dry, disturbed areas and rangelands
Scientific name: Bassia prostrata
Name: Forget-me-not
Order: Boraginales
Habitat: Moist areas, woodlands, and gardens
Scientific name: Myosotis species
Name: Four-leaf Clover
Order: Fabales
Habitat: Aquatic habitats and moist areas
Scientific name: Marsilea quadrifolia
Name: Foxglove
Order: Lamiales
Habitat: Native to Europe and Western Asia
Scientific name: Digitalis spp.
Name: Foxtail Barley
Order: Poales
Habitat: Disturbed areas, fields, and roadsides
Scientific name: Hordeum jubatum
Name: Fragrant Bedstraw
Order: Gentianales
Habitat: Moist, shaded areas in forests
Scientific name: Galium odoratum
Name: Fragrant Fern
Order: Dryopteridales
Habitat: Crevices and rocky areas in mountains
Scientific name: Dryopteris fragrans
Name: French Tarragon
Order: Asterales
Habitat: Cultivated gardens and herb beds
Scientific name: Artemisia dracunculus
Name: Fringed Rue
Order: Sapindales
Habitat: Native to the Mediterranean region
Scientific name: Ruta chalepensis
Name: Frost Lichen
Order: Lecanoromycetes
Habitat: On tree bark and rock surfaces
Scientific name: Physconia species
Name: Frosted Currant
Order: Saxifragales
Habitat: Dry, rocky areas in mountains and foothills
Scientific name: Ribes cereum
Name: Fumitory
Order: Papaverales
Habitat: Native to Europe and Asia
Scientific name: Fumaria officinalis
Name: Fábrega
Order: Lamiales
Habitat: Central America
Scientific name: Fabregasia panamensis
Name: Fábregas
Order: Myrtales
Habitat: Native to South America
Scientific name: Eugenia uniflora
| Name | Order | Habitat | Scientific name |
|---|---|---|---|
| Fagopyrum | Caryophyllales | Cultivated as a cereal crop | Fagopyrum esculentum |
| Fairy Candle | Asterales | Moist woodland areas | Lysimachia clethroides |
| Fairy Fans | Caryophyllales | Woodland | Dianthus deltoides |
| Fairy Fern | Polypodiales | Tropical and subtropical regions | Dicranopteris linearis |
| Fairy Fingers | Asparagales | Woodland | Digitalis purpurea |
| Fairy Flax | Malpighiales | Grasslands and heaths | Linum catharticum |
| Fairy Floss | Malvales | Tropical and subtropical regions | Calliandra haematocephala |
| Fairy Godmother's Herb | Asterales | Lawns, gardens, and waste areas | Matricaria chamomilla |
| Fairy Lantern | Liliales | Coastal woodlands and grasslands | Calochortus albus |
| Fairy Lilies | Asparagales | Meadow | Zephyranthes spp. |
| Fairy Mist | Ericales | Australia | Blandfordia nobilis |
| Fairy Pipewort | Poales | Asia and Australia | Eriocaulon cinereum |
| Fairy Shrimp | Anostraca | Temporary Pools | Branchinecta spp. |
| Fairy Shrimp Plant | Lamiales | Moist woodlands and meadows | Pedicularis canadensis |
| Fairy Spear | Asparagales | Coastal regions and grasslands | Charlemagnea angustifolia |
| Fairy Spoon | Ericales | Western North America | Sarcodes sanguinea |
| Fairy Spuds | Rosales | Woodland | Soleirolia soleirolii |
| Fairy Sword | Asparagales | Mediterranean region | Gladiolus communis |
| Fairy Thimble | Ericales | Eastern North America | Corema conradii |
| Fairy Thimbles | Lamiales | Woodland | Dalminia spp. |
| Fairy Wand | Caryophyllales | Alpine | Androsace spp. |
| Fairy Whispers | Cyperales | Dry, calcareous soils in open woods | Carex eburnea |
| Fairy Wings | Asterales | Meadow | Ageratum spp. |
| Falcaria | Apiales | Grassland | Falcaria vulgaris |
| Fall Crocus | Asparagales | Meadows, pastures, and roadsides | Colchicum autumnale |
| Fall Dandelion | Asterales | Europe and temperate Asia | Leontodon autumnalis |
| False Asphodel | Asparagales | Wetland | Tofieldia spp. |
| False Aster | Asterales | Eastern North America | Boltonia asteroides |
| False Buckwheat | Caryophyllales | Widespread in temperate regions | Fallopia convolvulus |
| False Bugbane | Ranunculales | Woodland | Trautvetteria spp. |
| False Chamomile | Asterales | Widespread in temperate regions | Matricaria discoidea |
| False Cleavers | Gentianales | Cultivated fields and waste areas | Galium spurium |
| False Clovers | Fabales | Grassland | Trifolium spp. |
| False Dandelion | Asterales | Lawns, pastures, and roadsides | Hypochaeris radicata |
| False Dragonhead | Lamiales | Eastern North America | Physostegia virginiana |
| False Fleabane | Asterales | North America | Erigeron philadelphicus |
| False Garlic | Asparagales | Grassland | Nothoscordum spp. |
| False Goat's Beard | Asterales | Europe and temperate Asia | Tragopogon pratensis |
| False Goatsbeard | Asterales | Eurasia and North America | Tragopogon dubius |
| False Hellebore | Liliales | Europe and temperate Asia | Veratrum album |
| False Henbane | Solanales | Disturbed | Hyoscyamus niger |
| False Indigo | Fabales | Eastern North America | Amorpha fruticosa |
| False Indigo-Bush | Fabales | Woodland | Amorpha fruticosa |
| False Lily of the Valley | Asparagales | Woodland | Maianthemum spp. |
| False Loosestrife | Myrtales | Wetlands, ditches, and pond margins | Ludwigia palustris |
| False Mermaid-Weed | Haloragales | Wetland | Haloragis spp. |
| False Nettle | Rosales | Eastern North America | Boehmeria cylindrica |
| False Nightshade | Solanales | Woodland | Solanum spp. |
| False Oat | Poales | Meadows, pastures, and roadsides | Arrhenatherum elatius |
| False Packsaddle | Caryophyllales | Disturbed | Atriplex spp. |
| False Pennyroyal | Lamiales | Eastern North America | Trichostema dichotomum |
| False Pennywort | Apiales | Moist, shaded areas and lawns | Hydrocotyle sibthorpioides |
| False Pimpernel | Lamiales | North America | Lindernia dubia |
| False Poinsettia | Malpighiales | Waste areas, gardens, and fields | Euphorbia cyathophora |
| False Senna | Fabales | Disturbed areas, roadsides, and woodlands | Senna marilandica |
| False Solomon's Seal | Asparagales | North America | Maianthemum racemosum |
| False Spikemoss | Selaginellales | Eastern North America | Selaginella apoda |
| False Sunflower | Asterales | North America | Heliopsis helianthoides |
| False Tobacco | Solanales | Central and South America | Nicotiana glauca |
| False Valerian | Dipsacales | Meadows, roadsides, and disturbed areas | Valeriana officinalis |
| Fameflower | Caryophyllales | North America | Phemeranthus teretifolius |
| Fandangle | Asterales | North America | Fandanglea foliosa |
| Faraday Grass | Poales | Australia | Faradaya australiana |
| Farkleberry | Ericales | Southeastern United States | Vaccinium arboreum |
| Farthing Herb | Lamiales | Europe | Farthingwortia officinalis |
| Fava Bean | Fabales | Worldwide | Vicia faba |
| Fazzia | Asterales | Central Asia | Fazzia nepalensis |
| Feaberry | Ericales | North America | Ribes oxyacanthoides |
| Fearless Nettle | Rosales | Widespread in temperate regions | Urtica dioica |
| Featherbells | Asparagales | Grasslands, meadows, and open woods | Themidaceae species |
| Featherfoil | Asterales | North America | Featherfolium aquaticum |
| Featherweed | Caryophyllales | Tropical and subtropical regions | Celosia argentea |
| Feathery False Lily of the Valley | Asparagales | Temperate forests of North America | Maianthemum racemosum |
| Fecola | Lamiales | Mediterranean region | Fecolum viscosa |
| Fedge | Cyperales | Dry, open woods and meadows | Carex pensylvanica |
| Fendler's Aster | Asterales | Western North America | Symphyotrichum fendleri |
| Fendler's Bladderpod | Brassicales | Western North America | Physaria fendleri |
| Fendler's Goosefoot | Caryophyllales | Dry, disturbed areas and roadsides | Chenopodium fendleri |
| Fendler's Meadow-Rue | Ranunculales | Western North America | Fendlera rupicola |
| Fendler's Sandwort | Caryophyllales | Western North America | Eremogone fendleri |
| Fendler's Stickseed | Boraginales | Western North America | Hackelia fendleri |
| Fendler's Waterleaf | Boraginales | Western North America | Hydrophyllum fendleri |
| Fenland Violet | Malpighiales | Wetlands of Europe | Viola persicifolia |
| Fennel | Apiales | Native to the shores of the Mediterranean | Foeniculum vulgare |
| Fennel Flower | Ranunculales | Mediterranean region | Nigella damascena |
| Fennel Parsley | Apiales | Coastal regions and disturbed habitats | Peucedanum foeniculum |
| Fenugreek | Fabales | Native to the Mediterranean region and Western Asia | Trigonella foenum-graecum |
| Fenugreek Dodder | Convolvulaceae | Widespread in temperate regions | Cuscuta trifolii |
| Fern Moss | Bryales | Widespread | Thuidium delicatulum |
| Fern-Leaf Yarrow | Asterales | Caucasus region | Achillea filipendulina |
| Fernald's Sedge | Poales | Northeastern United States | Carex fernaldii |
| Fernleaf Biscuitroot | Apiales | Western North America | Lomatium dissectum |
| Ferula | Apiales | Mediterranean region | Ferula communis |
| Fescue | Poales | Found worldwide in temperate regions | Festuca spp. |
| Fetid Adder's-tongue | Ophioglossales | North America | Fetidus ophioglossoides |
| Fetid Marigold | Asterales | Prairies, pastures, and waste areas | Dyssodia papposa |
| Fetter Bush | Ericales | Eastern North America | Fetterbushia racemosa |
| Fetterbush | Ericales | Eastern North America | Lyonia lucida |
| Feverfew | Asterales | Native to southeastern Europe and Asia Minor | Tanacetum parthenium |
| Feverwort | Dipsacales | Eurasia | Feverwortia tripartita |
| Fibrous Water Fern | Polypodiales | Aquatic and wetland habitats | Ceratopteris thalictroides |
| Fiddleneck | Boraginales | Disturbed areas, fields, and roadsides | Amsinckia species |
| Field Eryngo | Apiales | Dry, disturbed areas and meadows | Eryngium campestre |
| Field Pennycress | Brassicales | Cultivated fields, roadsides, and waste areas | Thlaspi arvense |
| Fierydarts | Alismatales | South America | Echinodorus cordifolius |
| Figwort | Lamiales | Eurasia | Figwortia nodosa |
| Fiji Asparagus | Asparagales | Fiji Islands | Asparagus filicinus |
| Filago | Asterales | Europe | Filagium germanicum |
| Filbert | Fagales | Eurasia | Filbertia maxima |
| Filmy Fern | Hymenophyllales | Temperate regions worldwide | Hymenophyllum wilsonii |
| Fineray | Apiales | Cultivated areas and disturbed habitats | Anthriscus cerefolium |
| Finetree | Cupressales | Western North America | Finetrea californica |
| Finger Grape | Vitales | Eastern North America | Vitis aestivalis |
| Finger Grass | Poales | Worldwide | Digitaria |
| Fingergrass | Poales | Lawns, pastures, and roadsides | Chloris species |
| Finocchio | Apiales | Mediterranean region | Finochium officinale |
| Fiorin | Poales | Native to Europe and Asia | Agrostis stolonifera |
| Fireberry | Ericales | Dry, sandy soils in woods and thickets | Vaccinium stamineum |
| Firecracker Plant | Lamiales | Africa and Asia | Crossandra infundibuliformis |
| Firelight Orchid | Asparagales | Australia | Caladenia catenata |
| Fireweed | Rosales | Northern Hemisphere | Fireweedea angustifolia |
| Fish Mint | Lamiales | Asia | Houttuynia cordata |
| Flame Lily | Liliales | Africa and Asia | Gloriosa superba |
| Flame Nettle | Lamiales | Southeast Asia | Coleus blumei |
| Flame Vine | Bignoniaceae | South America | Pyrostegia venusta |
| Flameleaf | Laurales | Eastern North America | Flameleafa florida |
| Flamingo Flower | Alismatales | Tropical regions of the Americas | Anthurium |
| Flax | Malpighiales | Originated in the Middle East | Linum usitatissimum |
| Flax Dodder | Convolvulales | Eurasia | Flaxdoddera europaea |
| Flax-lily | Asparagales | New Zealand | Flaxlilium novae-zelandiae |
| Flaxleaf Fleabane | Asterales | Southwestern United States | Erigeron linifolius |
| Floating Primrose-Willow | Myrtales | Americas and Africa | Ludwigia peploides |
| Floating Water Fern | Salviniales | Aquatic habitats and slow-moving waters | Salvinia molesta |
| Florida Aloe | Asparagales | Florida | Aloe barbadensis |
| Florida Betony | Lamiales | Southeastern US | Stachys floridana |
| Florida Clover | Fabales | Dry, sandy soils in pinelands and scrubs | Trifolium floridanum |
| Florida False Gromwell | Boraginales | Southeastern US | Onosmodium virginianum |
| Florida Gamagrass | Poales | Florida | Tripsacum floridanum |
| Florida Indian Plantain | Asterales | Florida | Arnoglossum floridanum |
| Florida Jasmine | Gentianales | Southeastern US | Gelsemium sempervirens |
| Florida Loosestrife | Myrtales | Wetlands, swamps, and pond margins | Decodon verticillatus |
| Florida Paintbrush | Lamiales | Southeastern US | Castilleja coccinea |
| Florida Peperomia | Piperales | Florida | Peperomia obtusifolia |
| Florida Prickly Pear | Caryophyllales | Southeastern US | Opuntia humifusa |
| Foam Flower | Saxifragales | Moist, shaded forests and stream banks | Tiarella cordifolia |
| Foamflower | Saxifragales | Moist, shaded areas in forests and woodlands | Tiarella species |
| Foamplant | Saxifragales | Moist, shaded areas in forests and gardens | Astilbe species |
| Foetid Marigold | Asterales | Prairies, roadsides, and waste areas | Dyssodia papposa |
| Forage Kochia | Caryophyllales | Dry, disturbed areas and rangelands | Bassia prostrata |
| Forget-me-not | Boraginales | Moist areas, woodlands, and gardens | Myosotis species |
| Four-leaf Clover | Fabales | Aquatic habitats and moist areas | Marsilea quadrifolia |
| Foxglove | Lamiales | Native to Europe and Western Asia | Digitalis spp. |
| Foxtail Barley | Poales | Disturbed areas, fields, and roadsides | Hordeum jubatum |
| Fragrant Bedstraw | Gentianales | Moist, shaded areas in forests | Galium odoratum |
| Fragrant Fern | Dryopteridales | Crevices and rocky areas in mountains | Dryopteris fragrans |
| French Tarragon | Asterales | Cultivated gardens and herb beds | Artemisia dracunculus |
| Fringed Rue | Sapindales | Native to the Mediterranean region | Ruta chalepensis |
| Frost Lichen | Lecanoromycetes | On tree bark and rock surfaces | Physconia species |
| Frosted Currant | Saxifragales | Dry, rocky areas in mountains and foothills | Ribes cereum |
| Fumitory | Papaverales | Native to Europe and Asia | Fumaria officinalis |
| Fábrega | Lamiales | Central America | Fabregasia panamensis |
| Fábregas | Myrtales | Native to South America | Eugenia uniflora |