| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| GOBI4 | Godetia biloba (Dur.) S. Wats. | Clarkia biloba ssp. biloba | Onagraceae
|
| GOBOD | Godetia bottae Spach var. deflexa (Jepson) C.L. Hitchc. | Clarkia bottae | Onagraceae
|
| GOBO | Godetia bottae Spach | Clarkia bottae | Onagraceae
|
| GOCYT | Godetia cylindrica (Jepson) C.L. Hitchc. var. tracyi Jepson | Clarkia gracilis ssp. tracyi | Onagraceae
|
| GOCY2 | Godetia cylindrica (Jepson) C.L. Hitchc. | Clarkia cylindrica ssp. cylindrica | Onagraceae
|
| GODUB | Godetia dudleyana Abrams var. brandegeeae Jepson | Clarkia biloba ssp. brandegeeae | Onagraceae
|
| GODU | Godetia dudleyana Abrams | Clarkia dudleyana | Onagraceae
|
| GOEP2 | Godetia epilobioides (Nutt. ex Torr. & Gray) S. Wats. | Clarkia epilobioides | Onagraceae
|
| GOHI6 | Godetia hispidula S. Wats. | Clarkia arcuata | Onagraceae
|
| GOLA3 | Godetia lassenensis Eastw. | Clarkia lassenensis | Onagraceae
|
| GOPA2 | Godetia pacifica M.E. Peck | Clarkia amoena ssp. caurina | Onagraceae
|
| GOPAL | Godetia parviflora (Hook. & Arn.) Jepson var. luteola C.L. Hitchc. | Clarkia speciosa ssp. speciosa | Onagraceae
|
| GOPAM | Godetia parviflora (Hook. & Arn.) Jepson var. margaritiae (Jepson) C.L. Hitchc. | Clarkia speciosa ssp. speciosa | Onagraceae
|
| GOPA3 | Godetia parviflora (Hook. & Arn.) Jepson | Clarkia speciosa ssp. speciosa | Onagraceae
|
| GOPUP | Godetia purpurea (W. Curtis) G. Don var. parviflora (S. Wats.) C.L. Hitchc. | Clarkia purpurea ssp. quadrivulnera | Onagraceae
|
| GOPU3 | Godetia purpurea (W. Curtis) G. Don | Clarkia purpurea ssp. purpurea | Onagraceae
|
| GOQUD | Godetia quadrivulnera (Dougl. ex Lindl.) Spach var. davyi Jepson | Clarkia davyi | Onagraceae
|
| GOQUV | Godetia quadrivulnera (Dougl. ex Lindl.) Spach var. vacensis Jepson | Clarkia purpurea ssp. quadrivulnera | Onagraceae
|
| GOQU2 | Godetia quadrivulnera (Dougl. ex Lindl.) Spach | Clarkia purpurea ssp. quadrivulnera | Onagraceae
|
| GOVIC | Godetia viminea (Dougl. ex Hook.) Spach var. congdonii Jepson | Clarkia williamsonii | Onagraceae
|
| GOVII | Godetia viminea (Dougl. ex Hook.) Spach var. incerta Jepson | Clarkia williamsonii | Onagraceae
|
| GOVI3 | Godetia viminea (Dougl. ex Hook.) Spach | Clarkia purpurea ssp. viminea | Onagraceae
|
| GOWH | Godetia whitneyi (Gray) T. Moore | Clarkia amoena ssp. whitneyi | Onagraceae
|
| GOEL | Goetzea elegans Wydler | mata buey | Solanaceae
|
| GOETZ | Goetzea Wydler | goetzea | Solanaceae
|
| GODE7 | Gollania densepinnata Dix. | Gollania turgens | Hypnaceae
|
| GOTU2 | Gollania turgens (C. M�ll.) Ando | gollania moss | Hypnaceae
|
| GOLLA | Gollania Broth. | gollania moss | Hypnaceae
|
| GOLI | Gomidesia lindeniana Berg | grand merisier | Myrtaceae
|
| GOMID | Gomidesia Berg | gomidesia | Myrtaceae
|
| GOGR | Gomozia granadensis L. f. | Nertera granadensis | Rubiaceae
|
| GOIL | Gomphia ilicifolia DC. | Ouratea ilicifolia | Ochnaceae
|
| GOAM3 | Gomphillus americanus Essl. | | Gomphillaceae
|
| GOMPH3 | Gomphillus Nyl. | gomphillus | Gomphillaceae
|
| GOCO2 | Gomphocarpus cordifolius Benth. | Asclepias cordifolia | Asclepiadaceae
|
| GOPH | Gomphocarpus physocarpus E. Mey. | Asclepias physocarpa | Asclepiadaceae
|
| GOBR3 | Gomphrena brasiliana L. | Alternanthera brasiliana | Amaranthaceae
|
| GOCA | Gomphrena caespitosa Torr. | tufted globe amaranth | Amaranthaceae
|
| GOCE | Gomphrena celosioides auct. non Mart. | Gomphrena serrata | Amaranthaceae
|
| GODE6 | Gomphrena decumbens Jacq. | Gomphrena serrata | Amaranthaceae
|
| GODI2 | Gomphrena dispersa Standl. | Gomphrena serrata | Amaranthaceae
|
| GOGL | Gomphrena globosa L. | common globe amaranth | Amaranthaceae
|
| GOHA | Gomphrena haageana Klotzsch | Rio Grande globe amaranth | Amaranthaceae
|
| GOMA2 | Gomphrena martiana Gill. ex Moq. | | Amaranthaceae
|
| GONE | Gomphrena nealleyi Coult. & Fisher | Nealley's globe amaranth | Amaranthaceae
|
| GONI | Gomphrena nitida Rothrock | pearly globe amaranth | Amaranthaceae
|
| GOSE | Gomphrena serrata L. | arrasa con todo | Amaranthaceae
|
| GOSE2 | Gomphrena sessilis L. | Alternanthera sessilis | Amaranthaceae
|
| GOSO | Gomphrena sonorae Torr. | Sonoran globe amaranth | Amaranthaceae
|
| GOTU | Gomphrena tuberifera Torr. | Gomphrena haageana | Amaranthaceae
|
| GOVI2 | Gomphrena viridis Woot. & Standl. | Gomphrena caespitosa | Amaranthaceae
|
| GOMPH | Gomphrena L. | globe amaranth | Amaranthaceae
|
| GOMU | Gongylia muscorum Zschacke | | Arthrorhaphidaceae
|
| GONA2 | Gongylia nadvornikii Servit | Sagediopsis barbara | Adelococcaceae
|
| GONGY | Gongylia Korber | gongylia | Arthrorhaphidaceae
|
| GOTR | Goniophlebium triseriale (Sw.) Wherry | Polypodium triseriale | Polypodiaceae
|
| GORE6 | Goniopteris reptans (J.F. Gmel.) K. Presl | Thelypteris reptans var. reptans | Thelypteridaceae
|
| GOSC | Goniopteris sclerophylla (Poepp. ex Spreng.) Wherry | Thelypteris sclerophylla | Thelypteridaceae
|
| GOTE6 | Goniopteris tenera F�e | Thelypteris reptans var. tenera | Thelypteridaceae
|
| GOTE5 | Goniopteris tetragona (Sw.) K. Presl | Thelypteris tetragona | Thelypteridaceae
|
| GOCI | Goniostachyum citrosum Small | Lantana canescens | Verbenaceae
|
| GOCO | Gonocalyx concolor Nevl. | island brittleleaf | Ericaceae
|
| GOPO2 | Gonocalyx portoricensis (Urban) A.C. Sm. | Puerto Rico brittleleaf | Ericaceae
|
| GONOC2 | Gonocalyx Planch. & Linden | brittleleaf | Ericaceae
|
| GOCHV | Gonocarpus chinensis (Lour.) Orchard ssp. verrucosus (Maiden & Betcke) Orchard | Chinese raspwort | Haloragaceae
|
| GOCH | Gonocarpus chinensis (Lour.) Orchard | Chinese raspwort | Haloragaceae
|
| GONOC | Gonocarpus Thunb. | raspwort | Haloragaceae
|
| GOCR | Gonohymenia cribellifera (Nyl.) Henssen | Lichinella cribellifera | Lichinaceae
|
| GOME2 | Gonohymenia melamphylla (Tuck.) Henssen | Lichinella melamphylla | Lichinaceae
|
| GOMI | Gonohymenia minnesotensis (Fink) Henssen | Lichinella minnesotensis | Lichinaceae
|
| GONI2 | Gonohymenia nigritella (Lettau) Henssen | Lichinella nigritella | Lichinaceae
|
| GOAR | Gonolobus arizonicus (Gray) Woods. | Matelea arizonica | Asclepiadaceae
|
| GOBA2 | Gonolobus baldwynianus Sweet | Matelea baldwyniana | Asclepiadaceae
|
| GOBI3 | Gonolobus biflorus Raf. | Matelea biflora | Asclepiadaceae
|
| GOCA3 | Gonolobus californicus Jepson | Matelea parvifolia | Asclepiadaceae
|
| GOCA4 | Gonolobus carolinensis (Jacq.) R. Br. ex J.A. Schultes, non Nutt. | Matelea carolinensis | Asclepiadaceae
|
| GOCU2 | Gonolobus cubensis A. Rich. | Cynanchum cubense | Asclepiadaceae
|
| GOCY3 | Gonolobus cynanchoides Engelm. | Matelea cynanchoides | Asclepiadaceae
|
| GODE3 | Gonolobus decipiens (Alexander) Perry | Matelea decipiens | Asclepiadaceae
|
| GOGO2 | Gonolobus gonocarpos (Walt.) Perry | Matelea gonocarpos | Asclepiadaceae
|
| GOLA5 | Gonolobus laevis Michx. | Cynanchum laeve | Asclepiadaceae
|
| GOOB | Gonolobus obliquus (Jacq.) R. Br. ex J.A. Schultes | Matelea obliqua | Asclepiadaceae
|
| GOPAB | Gonolobus parviflorus Torr. var. brevicoronatus B.L. Robins. | Matelea brevicoronata | Asclepiadaceae
|
| GOPA4 | Gonolobus parvifolius Torr. | Matelea parvifolia | Asclepiadaceae
|
| GOPR2 | Gonolobus productus Torr. | Matelea producta | Asclepiadaceae
|
| GORE4 | Gonolobus reticulatus Engelm. ex Gray | Matelea reticulata | Asclepiadaceae
|
| GOSA4 | Gonolobus sagittifolius Gray | Matelea sagittifolia | Asclepiadaceae
|
| GOSH2 | Gonolobus shortii Gray | Matelea obliqua | Asclepiadaceae
|
| GOSI | Gonolobus sintenisii Schlechter | Matelea sintenisii | Asclepiadaceae
|
| GOST | Gonolobus stephanotrichus Griseb. | anglepod | Asclepiadaceae
|
| GOSU | Gonolobus suberosus auct. non (L.) R. Br. | Matelea gonocarpos | Asclepiadaceae
|
| GOVA | Gonolobus variifolius Schlechter | Matelea variifolia | Asclepiadaceae
|
| GONOL | Gonolobus Michx. | gonolobus | Asclepiadaceae
|
| GOAM2 | Gonopyrum americanum Fisch. & C.A. Mey. | Polygonella americana | Polygonaceae
|
| GOHE | Gonotheca helianthoides (L.) Raf. | Tetragonotheca helianthoides | Asteraceae
|
| GOHI4 | Gonzalagunia hirsuta (Jacq.) K. Schum. | mata de Mariposa | Rubiaceae
|
| GOSP | Gonzalagunia spicata (Lam.) G. Maza | Gonzalagunia hirsuta | Rubiaceae
|
| GONZA | Gonzalagunia Ruiz & Pav�n | gonzalagunia | Rubiaceae
|
| GOLU | Goodmania luteola (Parry) Reveal & Ertter | yellow spinecape | Polygonaceae
|
| GOODM | Goodmania Reveal & Ertter | spinecape | Polygonaceae
|
| GODE5 | Goodyera decipiens (Hook.) F.T. Hubbard | Goodyera oblongifolia | Orchidaceae
|