| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| GLOBU | Globulinella Steere | globulinella moss | Pottiaceae
|
| GLPO2 | Glochidion ponapense Hosokawa | | Euphorbiaceae
|
| GLOCH | Glochidion J.R. & G. Forst. | | Euphorbiaceae
|
| GLSU2 | Gloriosa superba L. | flame lily | Liliaceae
|
| GLORI | Gloriosa L. | flame lily | Liliaceae
|
| GLAN | Glossadelphus andersonii Bartr. | Bryocrumia vivicolor | Hypnaceae
|
| GLCL | Glossopetalon clokeyi (Ensign) St. John | Clokey's greasebush | Crossosomataceae
|
| GLME3 | Glossopetalon meionandrum Koehne | Glossopetalon spinescens var. meionandrum | Crossosomataceae
|
| GLNES2 | Glossopetalon nevadense Gray var. stipuliferum (St. John) C.L. Hitchc. | Glossopetalon spinescens var. aridum | Crossosomataceae
|
| GLNE | Glossopetalon nevadense Gray | Glossopetalon spinescens var. aridum | Crossosomataceae
|
| GLPL | Glossopetalon planitierum (Ensign) St. John | plains greasebush | Crossosomataceae
|
| GLPUG | Glossopetalon pungens Brandeg. var. glabrum (Ensign) St. John | Glossopetalon pungens | Crossosomataceae
|
| GLPU | Glossopetalon pungens Brandeg. | dwarf greasebush | Crossosomataceae
|
| GLSPA | Glossopetalon spinescens Gray var. aridum M.E. Jones | spiny greasebush | Crossosomataceae
|
| GLSPM | Glossopetalon spinescens Gray var. meionandrum (Koehne) Trel. | spiny greasebush | Crossosomataceae
|
| GLSPM2 | Glossopetalon spinescens Gray var. microphyllum N. Holmgren | spiny greasebush | Crossosomataceae
|
| GLSPS | Glossopetalon spinescens Gray var. spinescens | spiny greasebush | Crossosomataceae
|
| GLSP | Glossopetalon spinescens Gray | spiny greasebush | Crossosomataceae
|
| GLST2 | Glossopetalon stipuliferum St. John | Glossopetalon spinescens var. aridum | Crossosomataceae
|
| GLTE2 | Glossopetalon texense (Ensign) St. John | Texas greasebush | Crossosomataceae
|
| GLOSS | Glossopetalon Gray | greasebush | Crossosomataceae
|
| GLDI | Glossostigma diandrum (L.) Kunze | | Scrophulariaceae
|
| GLOSS2 | Glossostigma Wight & Arn. | glossostigma | Scrophulariaceae
|
| GLAS | Glossostylis aspera Cham. & Schlecht. | Alectra fluminensis | Scrophulariaceae
|
| GLVE | Glottidium vesicarium (Jacq.) Harper | bagpod | Fabaceae
|
| GLOTT | Glottidium Desv. | glottidium | Fabaceae
|
| GLPE3 | Gloxinia perennis (L.) Druce | Canterbury bells | Gesneriaceae
|
| GLOXI | Gloxinia L'H�r. | gloxinia | Gesneriaceae
|
| GLRE3 | Gluta renghas L. | rengas | Anacardiaceae
|
| GLUTA | Gluta L. | gluta | Anacardiaceae
|
| GLAC | Glyceria acutiflora Torr. | creeping mannagrass | Poaceae
|
| GLAR | Glyceria arkansana Fern. | Arkansas mannagrass | Poaceae
|
| GLBO | Glyceria borealis (Nash) Batchelder | small floating mannagrass | Poaceae
|
| GLBO2 | Glyceria borreri (Bab.) Bab. | Puccinellia fasciculata | Poaceae
|
| GLCA4 | Glyceria californica Beetle | Torreyochloa californica | Poaceae
|
| GLCAL | Glyceria canadensis (Michx.) Trin. var. laxa (Scribn.) A.S. Hitchc. | Glyceria laxa | Poaceae
|
| GLCA | Glyceria canadensis (Michx.) Trin. | rattlesnake mannagrass | Poaceae
|
| GLDE | Glyceria declinata Br�biss. | waxy mannagrass | Poaceae
|
| GLEL | Glyceria elata (Nash ex Rydb.) M.E. Jones | Glyceria striata | Poaceae
|
| GLER2 | Glyceria erecta A.S. Hitchc. | Torreyochloa erecta | Poaceae
|
| GLFE2 | Glyceria fernaldii (A.S. Hitchc.) St. John | Torreyochloa pallida var. fernaldii | Poaceae
|
| GLFL2 | Glyceria fluitans (L.) R. Br. | water mannagrass | Poaceae
|
| GLGA | Glyceria �gatineauensis Bowden | | Poaceae
|
| GLGRG | Glyceria grandis S. Wats. var. grandis | American mannagrass | Poaceae
|
| GLGRK | Glyceria grandis S. Wats. var. komarovii L. Kelso | American mannagrass | Poaceae
|
| GLGR | Glyceria grandis S. Wats. | American mannagrass | Poaceae
|
| GLHU | Glyceria hulteniana A. L�ve | Glyceria grandis var. komarovii | Poaceae
|
| GLLA | Glyceria laxa (Scribn.) Scribn. | limp mannagrass | Poaceae
|
| GLLE2 | Glyceria leptostachya Buckl. | davy mannagrass | Poaceae
|
| GLMA6 | Glyceria maritima (Huds.) Wahlenb. | Puccinellia maritima | Poaceae
|
| GLMAG | Glyceria maxima (Hartman) Holmb. ssp. grandis (S. Wats.) Hult�n | Glyceria grandis var. grandis | Poaceae
|
| GLMAA | Glyceria maxima (Hartman) Holmb. var. americana (Torr.) Boivin | Glyceria grandis var. grandis | Poaceae
|
| GLMA3 | Glyceria maxima (Hartman) Holmb. | reed mannagrass | Poaceae
|
| GLME2 | Glyceria melicaria (Michx.) F.T. Hubbard | melic mannagrass | Poaceae
|
| GLNE2 | Glyceria nervata (Willd.) Trin. | Glyceria striata | Poaceae
|
| GLNU | Glyceria nubigena W.A. Anderson | Great Smoky Mountain mannagrass | Poaceae
|
| GLOB | Glyceria obtusa (Muhl.) Trin. | Atlantic mannagrass | Poaceae
|
| GLOC | Glyceria occidentalis (Piper) J.C. Nels. | northwestern mannagrass | Poaceae
|
| GLOT | Glyceria otisii A.S. Hitchc. | Torreyochloa pallida var. pauciflora | Poaceae
|
| GLOT2 | Glyceria �ottawensis Bowden | Glyceria laxa | Poaceae
|
| GLPAF | Glyceria pallida (Torr.) Trin. var. fernaldii A.S. Hitchc. | Torreyochloa pallida var. fernaldii | Poaceae
|
| GLPA5 | Glyceria pallida (Torr.) Trin. | Torreyochloa pallida var. pallida | Poaceae
|
| GLPA6 | Glyceria pauciflora J. Presl | Torreyochloa pallida var. pauciflora | Poaceae
|
| GLPU2 | Glyceria pulchella (Nash) K. Schum. | MacKenzie Valley mannagrass | Poaceae
|
| GLRU | Glyceria rupestris (With.) E.S. Marshall | Puccinellia rupestris | Poaceae
|
| GLSEA | Glyceria septentrionalis A.S. Hitchc. var. arkansana (Fern.) Steyermark & Kucera | Glyceria arkansana | Poaceae
|
| GLSE3 | Glyceria septentrionalis A.S. Hitchc. | floating mannagrass | Poaceae
|
| GLSP2 | Glyceria spectabilis Mert. & Koch | Glyceria maxima | Poaceae
|
| GLSTS3 | Glyceria striata (Lam.) A.S. Hitchc. ssp. stricta (Scribn.) Hult�n | Glyceria striata | Poaceae
|
| GLSTS | Glyceria striata (Lam.) A.S. Hitchc. var. stricta (Scribn.) Fern. | Glyceria striata | Poaceae
|
| GLST | Glyceria striata (Lam.) A.S. Hitchc. | fowl mannagrass | Poaceae
|
| GLTE4 | Glyceria tenella Lange | Puccinellia tenella ssp. tenella | Poaceae
|
| GLYCE | Glyceria R. Br. | mannagrass | Poaceae
|
| GLAP | Glycine apios L. | Apios americana | Fabaceae
|
| GLCA3 | Glycine caribaea Jacq. | Rhynchosia caribaea | Fabaceae
|
| GLCO4 | Glycine comosa L. | Amphicarpaea bracteata var. comosa | Fabaceae
|
| GLGR2 | Glycine gracilis Skvortzov | Glycine max | Fabaceae
|
| GLHI | Glycine hispida (Moench) Maxim. | Glycine max | Fabaceae
|
| GLJA2 | Glycine javanica L. | Pueraria montana | Fabaceae
|
| GLMA4 | Glycine max (L.) Merr. | soybean | Fabaceae
|
| GLPH | Glycine phaseoloides Sw. | Rhynchosia phaseoloides | Fabaceae
|
| GLPR | Glycine priceana (B.L. Robins.) Britt. | Apios priceana | Fabaceae
|
| GLRE | Glycine reniformis Pursh | Rhynchosia reniformis | Fabaceae
|
| GLRE2 | Glycine reticulata Sw. | Rhynchosia reticulata | Fabaceae
|
| GLSO80 | Glycine soja Sieb. & Zucc. | wild soybean | Fabaceae
|
| GLSU3 | Glycine subterranea L. | Vigna subterranea | Fabaceae
|
| GLTA2 | Glycine tabacina (Labill.) Benth. | glycine | Fabaceae
|
| GLTO2 | Glycine tomentella Hayata | glycine | Fabaceae
|
| GLTO | Glycine tomentosa L., non Dolicholus tomentosus (L.) Vail | Rhynchosia tomentosa var. tomentosa | Fabaceae
|
| GLUS | Glycine ussuriensis Regel & Maack | Glycine soja | Fabaceae
|
| GLWI2 | Glycine wightii (Wight & Arn.) Verdc. | Neonotonia wightii | Fabaceae
|
| GLYCI | Glycine Willd. | soybean | Fabaceae
|
| GLOC2 | Glycosma occidentalis Nutt. ex Torr. & Gray | Osmorhiza occidentalis | Apiaceae
|
| GLCI | Glycosmis citrifolia (Willd.) Lindl. | Glycosmis parviflora | Rutaceae
|
| GLPA4 | Glycosmis parviflora (Sims) Little | flower axistree | Rutaceae
|
| GLYCO | Glycosmis Correa | glycosmis | Rutaceae
|
| GLGL | Glycyrrhiza glabra L. | cultivated licorice | Fabaceae
|
| GLGL4 | Glycyrrhiza glutinosa Nutt. | Glycyrrhiza lepidota | Fabaceae
|
| GLLEG | Glycyrrhiza lepidota Pursh var. glutinosa (Nutt.) S. Wats. | Glycyrrhiza lepidota | Fabaceae
|
| GLLE3 | Glycyrrhiza lepidota Pursh | American licorice | Fabaceae
|
| GLYCY | Glycyrrhiza L. | licorice | Fabaceae
|