Egyptian Starcluster 
Elephant's Foot Plant 
Enicostema axillare 
European Caralluma 
Exacum paucisquamum 
False Cleavers 
Faramea multiflora 
Felwort 
Fewflower milkweed 
Field Gentian 
Firebush 
Firecracker bush 
Flame of the woods 
Florida Pusley 
Fourleaf milkweed 
Fringed Gentian 
Fringed twinevine 
Galium canum 
Galium chaetopodum 
Galium hierosolymitanum 
Galium humifusum 
Galium incanum 
Galium rivale 
Galium samuelssonii