| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| FOMA2 | Fortunella margarita (Lour.) Swingle | oval kumquat | Rutaceae
|
| FORTU | Fortunella Swingle | kumquat | Rutaceae
|
| FOAL2 | Fossombronia alaskana Steere & Inoue | | Fossombroniaceae
|
| FOBR | Fossombronia brasiliensis Steph. | | Fossombroniaceae
|
| FOCR2 | Fossombronia cristula Austin | | Fossombroniaceae
|
| FOFO2 | Fossombronia foveolata Lindb. | | Fossombroniaceae
|
| FOHI2 | Fossombronia hispidissima Steph. | | Fossombroniaceae
|
| FOLA2 | Fossombronia lamellata Steph. | | Fossombroniaceae
|
| FOLO2 | Fossombronia longiseta (Austin) Austin | | Fossombroniaceae
|
| FOMA4 | Fossombronia macounii Austin | | Fossombroniaceae
|
| FOTE5 | Fossombronia texana Lindb. | | Fossombroniaceae
|
| FOWO | Fossombronia wondraczekii (Corda) Dumort. | | Fossombroniaceae
|
| FOSSO | Fossombronia Raddi | | Fossombroniaceae
|
| FOGA | Fothergilla gardenii L. | dwarf witchalder | Hamamelidaceae
|
| FOMA | Fothergilla major (Sims) Lodd. | mountain witchalder | Hamamelidaceae
|
| FOPA | Fothergilla parvifolia Kearney | Fothergilla gardenii | Hamamelidaceae
|
| FOTHE | Fothergilla L. | witchalder | Hamamelidaceae
|
| FOCO3 | Fouquieria columnaris (Kellogg) Kellogg ex Curran | boojum tree | Fouquieriaceae
|
| FODI3 | Fouquieria diguetii (Tiegh.) I.M. Johnst. | Adam's tree | Fouquieriaceae
|
| FOSP2 | Fouquieria splendens Engelm. | ocotillo | Fouquieriaceae
|
| FOUQU | Fouquieria Kunth | ocotillo | Fouquieriaceae
|
| FRAM4 | Fragaria americana (Porter) Britt. | Fragaria vesca ssp. americana | Rosaceae
|
| FRANA2 | Fragaria �ananassa Duchesne (pro sp.) var. ananassa | | Rosaceae
|
| FRANC2 | Fragaria �ananassa Duchesne (pro sp.) var. cuneifolia (Nutt. ex T.J. Howell) Staudt (pro nm.) | | Rosaceae
|
| FRAN | Fragaria �ananassa Duchesne (pro sp.) | | Rosaceae
|
| FRAU | Fragaria australis (Rydb.) Rydb. | Fragaria virginiana ssp. virginiana | Rosaceae
|
| FRBR3 | Fragaria bracteata Heller | Fragaria vesca ssp. bracteata | Rosaceae
|
| FRCAF2 | Fragaria californica Cham. & Schlecht. var. franciscana Rydb. | Fragaria vesca ssp. californica | Rosaceae
|
| FRCA10 | Fragaria californica Cham. & Schlecht. | Fragaria vesca ssp. californica | Rosaceae
|
| FRCA11 | Fragaria canadensis Michx. | Fragaria virginiana ssp. virginiana | Rosaceae
|
| FRCHC | Fragaria chiloensis (L.) P. Mill. ssp. chiloensis | beach strawberry | Rosaceae
|
| FRCHL | Fragaria chiloensis (L.) P. Mill. ssp. lucida (Vilm.) Staudt | beach strawberry | Rosaceae
|
| FRCHP | Fragaria chiloensis (L.) P. Mill. ssp. pacifica Staudt | Pacific beach strawberry | Rosaceae
|
| FRCHS2 | Fragaria chiloensis (L.) P. Mill. ssp. sandwicensis (Dcne.) Staudt | Sandwich beach strawberry | Rosaceae
|
| FRCHS | Fragaria chiloensis (L.) P. Mill. var. sandwicensis O.& I. Deg. | Fragaria chiloensis ssp. sandwicensis | Rosaceae
|
| FRCHS3 | Fragaria chiloensis (L.) P. Mill. var. scouleri Hook. | Fragaria chiloensis ssp. chiloensis | Rosaceae
|
| FRCH | Fragaria chiloensis (L.) P. Mill. | beach strawberry | Rosaceae
|
| FRCR | Fragaria crinita Rydb. | Pacific strawberry | Rosaceae
|
| FRCU2 | Fragaria cuneifolia Nutt. ex T.J. Howell | Fragaria ananassa var. cuneifolia | Rosaceae
|
| FRGL2 | Fragaria glauca (S. Wats.) Rydb. | Fragaria virginiana ssp. glauca | Rosaceae
|
| FRGR5 | Fragaria grandiflora Ehrh. | Fragaria ananassa var. cuneifolia | Rosaceae
|
| FRGR6 | Fragaria grayana Vilm. ex J. Gay | Fragaria virginiana ssp. grayana | Rosaceae
|
| FRHE | Fragaria helleri Holz. | Fragaria vesca ssp. bracteata | Rosaceae
|
| FRIN2 | Fragaria indica Andr. | Duchesnea indica | Rosaceae
|
| FRMA2 | Fragaria �magna auct. p.p. non Thuill. | Fragaria ananassa var. ananassa | Rosaceae
|
| FRMU | Fragaria multicipita Fern. | Fragaria virginiana ssp. glauca | Rosaceae
|
| FROV | Fragaria ovalis (Lehm.) Rydb. | Fragaria virginiana ssp. glauca | Rosaceae
|
| FRPA5 | Fragaria pauciflora Rydb. | Fragaria virginiana ssp. glauca | Rosaceae
|
| FRPLS | Fragaria platypetala Rydb. var. sibbaldifolia (Rydb.) Jepson | Fragaria virginiana ssp. platypetala | Rosaceae
|
| FRPL2 | Fragaria platypetala Rydb. | Fragaria virginiana ssp. platypetala | Rosaceae
|
| FRSA2 | Fragaria sandwicensis Dcne. | Fragaria chiloensis ssp. sandwicensis | Rosaceae
|
| FRSI | Fragaria sibbaldifolia Rydb. | Fragaria virginiana ssp. platypetala | Rosaceae
|
| FRSU | Fragaria suksdorfii Rydb. | Fragaria virginiana ssp. platypetala | Rosaceae
|
| FRTR | Fragaria truncata Rydb. | Fragaria virginiana ssp. platypetala | Rosaceae
|
| FRVEA2 | Fragaria vesca L. ssp. americana (Porter) Staudt | woodland strawberry | Rosaceae
|
| FRVEB2 | Fragaria vesca L. ssp. bracteata (Heller) Staudt | woodland strawberry | Rosaceae
|
| FRVEC2 | Fragaria vesca L. ssp. californica (Cham. & Schlecht.) Staudt | California strawberry | Rosaceae
|
| FRVEV | Fragaria vesca L. ssp. vesca | woodland strawberry | Rosaceae
|
| FRVEA3 | Fragaria vesca L. var. alba (Ehrh.) Rydb. | Fragaria vesca ssp. vesca | Rosaceae
|
| FRVEA4 | Fragaria vesca L. var. americana Porter | Fragaria vesca ssp. americana | Rosaceae
|
| FRVEB3 | Fragaria vesca L. var. bracteata (Heller) R.J. Davis | Fragaria vesca ssp. bracteata | Rosaceae
|
| FRVEC | Fragaria vesca L. var. crinita (Rydb.) C.L. Hitchc. | Fragaria crinita | Rosaceae
|
| FRVE | Fragaria vesca L. | woodland strawberry | Rosaceae
|
| FRVIG2 | Fragaria virginiana Duchesne ssp. glauca (S. Wats.) Staudt | Virginia strawberry | Rosaceae
|
| FRVIG3 | Fragaria virginiana Duchesne ssp. grayana (Vilm. ex J. Gay) Staudt | Virginia strawberry | Rosaceae
|
| FRVIP2 | Fragaria virginiana Duchesne ssp. platypetala (Rydb.) Staudt | Virginia strawberry | Rosaceae
|
| FRVIV | Fragaria virginiana Duchesne ssp. virginiana | Virginia strawberry | Rosaceae
|
| FRVIA | Fragaria virginiana Duchesne var. australis Rydb. | Fragaria virginiana ssp. virginiana | Rosaceae
|
| FRVIC | Fragaria virginiana Duchesne var. canadensis (Michx.) Farw. | Fragaria virginiana ssp. virginiana | Rosaceae
|
| FRVIG4 | Fragaria virginiana Duchesne var. glauca S. Wats. | Fragaria virginiana ssp. glauca | Rosaceae
|
| FRVII | Fragaria virginiana Duchesne var. illinoensis Gray | Fragaria virginiana ssp. grayana | Rosaceae
|
| FRVIO2 | Fragaria virginiana Duchesne var. ovalis (Lehm.) R.J. Davis | Fragaria virginiana ssp. glauca | Rosaceae
|
| FRVIP3 | Fragaria virginiana Duchesne var. platypetala (Rydb.) Hall | Fragaria virginiana ssp. platypetala | Rosaceae
|
| FRVIT | Fragaria virginiana Duchesne var. terrae-novae (Rydb.) Fern. & Wieg. | Fragaria virginiana ssp. glauca | Rosaceae
|
| FRVI | Fragaria virginiana Duchesne | Virginia strawberry | Rosaceae
|
| FRAGA | Fragaria L. | strawberry | Rosaceae
|
| FRAL4 | Frangula alnus P. Mill. | glossy buckthorn | Rhamnaceae
|
| FRBEB | Frangula betulifolia (Greene) V. Grub. ssp. betulifolia | beechleaf frangula | Rhamnaceae
|
| FRBEO | Frangula betulifolia (Greene) V. Grub. ssp. obovata (Kearney & Peebles) Kartesz & Gandhi | obovate buckthorn | Rhamnaceae
|
| FRBE2 | Frangula betulifolia (Greene) V. Grub. | beechleaf frangula | Rhamnaceae
|
| FRBL | Frangula �blumeri (Greene) Kartesz & Gandhi (pro sp.) | | Rhamnaceae
|
| FRCAC5 | Frangula californica (Eschsch.) Gray ssp. californica | California buckthorn | Rhamnaceae
|
| FRCAC6 | Frangula californica (Eschsch.) Gray ssp. crassifolia (Jepson) Kartesz & Gandhi | California buckthorn | Rhamnaceae
|
| FRCAC7 | Frangula californica (Eschsch.) Gray ssp. cuspidata (Greene) Kartesz & Gandhi | California buckthorn | Rhamnaceae
|
| FRCAO4 | Frangula californica (Eschsch.) Gray ssp. occidentalis (T.J. Howell) Kartesz & Gandhi | California buckthorn | Rhamnaceae
|
| FRCAT2 | Frangula californica (Eschsch.) Gray ssp. tomentella (Benth.) Kartesz & Gandhi | California buckthorn | Rhamnaceae
|
| FRCAU | Frangula californica (Eschsch.) Gray ssp. ursina (Greene) Kartesz & Gandhi | California buckthorn | Rhamnaceae
|
| FRCA12 | Frangula californica (Eschsch.) Gray | California buckthorn | Rhamnaceae
|
| FRCA13 | Frangula caroliniana (Walt.) Gray | Carolina buckthorn | Rhamnaceae
|
| FRPU7 | Frangula purshiana (DC.) Cooper | Pursh's buckthorn | Rhamnaceae
|
| FRRUM | Frangula rubra (Greene) V. Grub. ssp. modocensis (C.B. Wolf) Kartesz & Gandhi | Modoc buckthorn | Rhamnaceae
|
| FRRUN | Frangula rubra (Greene) V. Grub. ssp. nevadensis (A. Nels.) Kartesz & Gandhi | Nevada buckthorn | Rhamnaceae
|
| FRRUO | Frangula rubra (Greene) V. Grub. ssp. obtusissima (Greene) Kartesz & Gandhi | obtuse buckthorn | Rhamnaceae
|
| FRRUR | Frangula rubra (Greene) V. Grub. ssp. rubra | red buckthorn | Rhamnaceae
|
| FRRUY | Frangula rubra (Greene) V. Grub. ssp. yosemitana (C.B. Wolf) Kartesz & Gandhi | Yosemite buckthorn | Rhamnaceae
|
| FRRU | Frangula rubra (Greene) V. Grub. | red buckthorn | Rhamnaceae
|
| FRSPL | Frangula sphaerosperma (Sw.) Kartesz & Gandhi ssp. longipes (M.C. & L.A. Johnston) Kartesz & Gandhi | West Indian buckthorn | Rhamnaceae
|
| FRSP2 | Frangula sphaerosperma (Sw.) Kartesz & Gandhi | West Indian buckthorn | Rhamnaceae
|
| FRANG | Frangula P. Mill. | buckthorn | Rhamnaceae
|
| FRGRC | Frankenia grandifolia Cham. & Schlecht. var. campestris Gray | Frankenia salina | Frankeniaceae
|
| FRGR | Frankenia grandifolia Cham. & Schlecht. | Frankenia salina | Frankeniaceae
|