Fatsia japonica 
Fennel 
Ferula biverticellata 
Ferula biverticillata 
Ferula daninii 
Ferula hermonis 
Ferula kuhistanica 
Ferula negevensis 
Ferula orientalis 
Ferula sinaica 
Ferulago trachycarpa 
Field eryngo 
Finger-flower 
Flannel Flower 
Flat-fruited Orlaya 
Floating pennywort 
Fluffy Thimbleweed 
Footsteps of spring 
Forest Pennywort 
Geyer's biscuitroot 
Giant fennel 
Giant hogweed 
Giant Tangier Fennel 
Golden alexanders