Garidella unguicularis 
Glaucium arabicum 
Glaucium leiocarpum 
Globeflower 
Gmelin's buttercup 
Golden columbine 
Goldenseal 
Goldilocks buttercup 
Greater celandine 
Greater Pasque Flower 
Green Hellebore 
Gymnospermium alberti 
Haller's anemone 
Headache vine 
Helleborus cyclophyllus 
Helleborus vesicarius 
Hispid Buttercup 
Hollow root 
Hooked crowfoot 
Hypecoum dimidiatum 
Hypecoum imberbe 
Hypecoum littorale 
Hypecoum pendulum 
Iceland poppy