Jump to genus: Gagea, Gaillardia, Galanthus, Galega, Galeopsis, Galerina, Galinsoga, Galium, Gamochaeta, Ganoderma, Garrya, Gastroboletus, Gaultheria, Gayophytum, Geastrum, Genista, Gentiana, Gentianella, Geocaulon, , Geoglossum, Geopora, Geopyxis, , Geranium, Gerhardtia, Gerronema, Geum, Gilia, Githopsis, Glechoma, Gleditsia, Glehnia, Gliophorus, Gloeophyllum, Gloeoporus, Gloiodon, Glossopetalon, Glyceria, Glycyrrhiza, Glyptopleura, Gnaphalium, Gomphidius, Gomphus, Goodyera, Graphis, Gratiola, Grayia, Greeneocharis, Grindelia, Gruvelia, Guepinia, Guizotia, Gutierrezia, Gyalolechia, Gymnocarpium, Gymnomitrion, Gymnopilus, Gymnopus, Gymnosporangium, Gypsophila, , Gyromitra, Gyroporus
