G
 
Galium
Galtonia
Galvezia
Garrya
Gaultheria
Gaura
Gentiana
Geranium
Geum
Gladiolus
Glechoma
Globularia
Gloriosa
Gomphostigma
Gordonia
Graptopetalum

Grasses
Grevillea
Gunnera
Gypsophila