Plant Family: Gnetaceae – 44 Species in Genus Gnetum

Plant Family: 152 Genera in Gesneriaceae

Plant Family: Gerrardinaceae – Genus Gerrardina

Plant Family: 7 Genera in Geraniaceae

Plant Family: 7 Genera in Goodeniaceae

Plant Family: Gomortegaceae – Genus Gomortega

Plant Family: 8 Genera in Haloragaceae

Plant Family: 105 Genera in Gentianaceae

Plant Family: Gisekiaceae – Genus Gisekia

Plant Family: Ginkgoaceae – Ginkgo Biloba Tree in Genus Ginkgo

Plant Family: 9 Genera in Hydrangeaceae

Plant Family: Hydatellaceae – Genus Trithuria

Plant Family: 8 Genera in Humiriaceae

Plant Family: 2 Genera in Huaceae

Plant Family: Himantandraceae – Genus Galbulimima

Plant Family: 4 Genera in Hernandiaceae

Plant Family: Helwingiaceae – Genus Helwingia

Plant Family: Heliconiaceae – 203 Species in Genus Heliconia

Plant Family: Hanguanaceae – Genus Hanguana

Plant Family: 26 Genera in Hamamelidaceae

Plant Family: Halophytaceae – Genus Halophytum

Plant Family: 15 Genera in Haemodoraceae

Plant Family: 5 Genera in Gyrostemonaceae

Plant Family: 9 Genera in Juglandaceae