| F |
| F. J. Grootendorst rose, Rosa 'F. J. Grootendorst' |
| Fair Bianca rose, Rosa 'AUSca' |
| Fairy moss, Azolla caroliniana |
| Fairy rose, Rosa 'Feerie' |
| Fairy Tale Queen rose, Rosa 'KORoyness' |
| Fairy-wand; Devil's bit, Chamaelirium luteum |
| Falling star, Montbretia = Crocosmia |
| Falling stars, Crocosmia hybrids |
| False dragon-head, Physostegia virginianum |
| False indigo, Blue false indigo, Baptisia australis |
| False lupine, Thermopsis villosa |
| False solomon's seal, Smilacina racemosa |
| Falsecypress, Boulevard, Chamaecyparis pisifera 'Boulevard' |
| Falsecypress, Dwarf thread sawara, Chamaecyparis pisifera 'Filifera Nana' |
| Falsecypress, Golden Mop, Chamaecyparis pisifera 'Golden Mop' |
| Falsecypress, Japanese, Chamaecyparis pisifera |
| Falsecypress, Koster's hinoke, Chamaecyparis obtusa 'Kosteri' |
| Falsecypress, Nana Gracilis, Chamaecyparis obtusa 'Nana Gracilis' |
| Falsecypress, Sawara, Chamaecyparis pisifera |
| Falsecypress, Snow, Chamaecyparis pisifera 'Snow' |
| Falsecypress, Squarrosa, Chamaecyparis pisifera 'Squarrosa Lutea' |
| Falsecypress, Sungold, Chamaecyparis pisifera 'Sungold' |
| Falsecypress, Tsukumo, Chamaecyparis pisifera 'Tsukumo' |
| Fame! rose, Rosa 'JACzor' |
| Fan flower, Scaevola aemula |
| Fantin-Latour rose, Rosa 'Fantin-Latour' |
| Farwell-to-spring, Clarkia hybrids |
| Fashion rose, Rosa 'Fashion' |
| Fatshedera, Fatshedera lizei |
| Fatshedera, Fatshedera lizei |
| Fatsia, Japanese, Fatsia japonica |
| Feather bells, Stenanthium gramineum |
| Feather reed grass, Calamagrostis x acutiflora |
| Feerie rose, Rosa 'Feerie' |
| Felicite Parmentier Alba rose, Rosa 'Felicite Parmentier Alba' |
| Fellowship rose, Rosa 'HARwelcome' |
| Felt fern, Pyrrosia hastata; P. tricuspis |
| Felt fern; Tongue fern, Pyrrosia lingua |
| Fennel, Foeniculum vulgare |
| Ferdinard Pichard rose, Rosa 'Ferdinard Pichard' |
| Fescue, Blue, Festuca ovina glauca |
| Fescue, Blue, Festuca ovina var. glauca |
| Fetterbush, Agarista populifolia = Leucothoe axillaris |
| Fetterbush, Leucothoe axillaris |
| Fetterbush, Leucothoe fontanesiana |
| Fetterbush, Leucothoe recurvara |
| Fetterbush, Pink, Lyonia lucida |
| Fetterbush, Pink, Lyonia lucida |
| Fever tree, Pinckneya braceata |
| Feverfew, Tanacetum parthenium |
| Fighazel, Chinese, Sycopsis sinensis |
| Filbert, European, Corylus avellana |
| Fir, Alpine, Abies lasiocarpa |
| Fir, Balsam, Abies balsamea |
| Fir, Caucasian, Abies nordmanniana |
| Fir, China, Cunninghamia lanceolata |
| Fir, Cilicica, Abies cilicica |
| Fir, Colorado, Abies concolor |
| Fir, Compact white, Abies concolor 'Compacta' |
| Fir, Fraser, Abies fraseri |
| Fir, Japanese; Momi fir, Abies firma |
| Fir, Korean, Abies koreana |
| Fir, Momi, Abies firma |
| Fir, Nordman, Abies nordmanniana |
| Fir, Rocky Mountain, Abies lasiocarpa |
| Fir, White, Abies concolor |
| Fire Meidland rose, Rosa 'MELpsidue' |
| Fire pink; Indianpink, Silene virginica |
| Firecracker vine, Mina lobata; Ipomoea lobata |
| Firecrest water lily, Nymphaea 'Firecrest' |
| Firespike, Odontonema strictum |
| Firethorn, Scarlet, Pyracantha coccinea |
| Fireweed; Great willowherb, Epilobium angustifolium |
| First Edition rose, Rosa 'DELtep' |
| First Flight rose, Rosa 'PERflight' |
| First Kiss rose, Rosa 'JACling' |
| First Light rose, Rosa'DEVrudi' |
| First Prize rose, Rosa 'First Prize' |
| Five fingers, Potentilla spp. |
| Flame of the woods, Ixora coccinea |
| Flame of the woods; Ixora; Jungle flame, Ixora coccinea |
| Flax, Perennial, Linum perenne |
| Fleabane, Philadelphia; Daisy fleabane, Erigeron philadelphicus |
| Fleece vine, Polygonum aubertii |
| Fleeceflower, Low Japanese, Polygonum japonica |
| Floating heart, Nymphoides pelatum |
| Florida anise tree, Illicum flordanum |
| Flowering fern; Royal fern, Osmunda regallis |
| Flowering flax, Linum grandiflorum |
| Flowering maple, Abutilon hybridum |
| Flowering tobacco, Hybrid, Nicotiana x sanderae |
| Flowering tobacco, Nicotiana alata |
| Fly poison, Amianthium muscitoxicum |
| Flytrap, Venus'; Meadow clams, Dionaea muscipula |
| Foamflower, Tiarella cordifolia |
| Foamflower; False miterwort, Tiarella cordifolia |
| Folklore rose, Rosa 'KORlore' |
| Fontanesia, Fortune's, Fontanesia fortunei |
| Forever Friends rose, Rosa 'HORkedegeree' |
| Forget-me-not, Myosotis scorpioides |
| Forget-me-not, Myosotis sylvatica |
| Forgotten Dreams rose, Rosa 'Forgotten Dreams' |
| Forsythia hybrids, Forsythia x hybrids |
| Forsythia, Border, Forsythia x intermedia |
| Forsythia, Bronx, Forsythia viridissima 'Bronxensis' |
| Forsythia, Early, Forsythia ouata |
| Forsythia, Greenstem, Forsythia viridissima |
| Forsythia, Korean, Forsythia ouata |
| Forsythia, Kumson, Forsythia viridissima var. koreana 'Kumson' |
| Forsythia, Weeping, Forsythia suspensa var. sieboldi |
| Forsythia, White, Abeliophyllum distichum |
| Fortune Teller rose, Rosa 'JACheir' |
| Fortuniena rose, Rosa x 'Fortuniana' |
| Foster's Melbourne's Cup rose, Rosa 'MACmouhoo' |
| Foster's Wellington Cup rose, Rosa |
| Fothergilla, Dwarf, Fothergilla gardenii |
| Fothergilla, Dwarf, Fothergilla gardenii |
| Fothergilla, Large, Fothergilla major |
| Fothergilla, Large, Fothergilla major |
| Fountain grass, Annual, Pennisetum setaceum |
| Fountain grass, Crimson, Pennisetum setaceum |
| Fountain grass, Pennisetum alopecuroides |
| Fountain grass, Pennisetum alopecuroides |
| Fountain plant, Amaranthus tricolor |
| Fountain plant, Russelia equisentiformis |
| Four Seasons rose, Rosa damascena bifera |
| Four-o'clock, Mirabilis jalapa |
| Fourth of July rose, Rosa 'WEKroalt' |
| Foxglove, Digitalis purpurea |
| Foxglove, Dusty; Willow leaf foxglove, Digitalis obscura |
| Foxglove, False, Aureolaria gerardia |
| Foxglove, False, Aureolaria gerardia |
| Foxglove, Smooth false, Gerardia laevigata = Aureolaria laevigata |
| Foxglove, Yellow false; Smooth false foxglove; Fern-leaf false foxglove, Aureolaria pedicularia (Gerardia flava) |
| Foxglove, Yellow false; Smooth false foxglove; Fern-leaf false foxglove, Gerardia flava |
| Foxtail lily, Eremurus spp. |
| Fragile fern; Brittle bladder fern, Cystopteris fragilis |
| Fragrant Cloud rose, Rosa 'TANellis' |
| Fragrant Plum rose, Rosa 'AROplumi' |
| Francois Rableais rose, Rosa 'MEInusian' |
| Franklinia, Franklinia alatamaha |
| Frau Dagmar Hartopp rose, Rosa |
| Frau Dagmar Hestrup rose, Rosa |
| Frau Karl Druschki rose, Rosa 'F. K. Druschki' |
| Freckle face, Hypoestes phyllostachya |
| Frederic Mistral rose, Rosa 'MELtebros' |
| Freesias, Blue, Babiana |
| Freesias, Freesia |
| French Lace rose, Rosa 'JAClance' |
| Frensham rose, Rosa 'Frensham' |
| Friesia rose, Rosa 'KORresia' |
| Fringe tree; Oldman's beard, Chionanthus virginicus |
| Fringetree, Chinese, Chionanthus retusus |
| Froebeli water lily, Nymphaea 'Froebeli' |
| Frosty Curls sedge, Carex albula 'Frosty Curls' |
| Fuchsia, Fuchsia x hybrida |